{"id":1415,"date":"2014-04-26T14:27:27","date_gmt":"2014-04-26T12:27:27","guid":{"rendered":"http:\/\/viewonphysics.gr\/?p=1415"},"modified":"2015-01-10T18:18:14","modified_gmt":"2015-01-10T16:18:14","slug":"2%ce%bf-%ce%ba%cf%81%ce%b9%cf%84%ce%ae%cf%81%ce%b9%ce%bf-online-%cf%83%cf%84%ce%b7-%ce%b3%ce%84-%ce%b3%cf%85%ce%bc%ce%bd%ce%b1%cf%83%ce%af%ce%bf%cf%85","status":"publish","type":"post","link":"https:\/\/viewonphysics.gr\/?p=1415","title":{"rendered":"2\u03bf \u039a\u03c1\u03b9\u03c4\u03ae\u03c1\u03b9\u03bf Online \u03c3\u03c4\u03b7 \u0393\u0384 \u0393\u03c5\u03bc\u03bd\u03b1\u03c3\u03af\u03bf\u03c5"},"content":{"rendered":"<script type=\"text\/javascript\" >\ndocument.addEventListener(\"DOMContentLoaded\", function(event) { \nif(!window.jQuery) alert(\"The important jQuery library is not properly loaded in your site. Your WordPress theme is probably missing the essential wp_head() call. You can switch to another theme and you will see that the plugin works fine and this notice disappears. If you are still not sure what to do you can contact us for help.\");\n});\n<\/script>  \n  \n<div  id=\"watupro_quiz\" class=\"quiz-area single-page-quiz\">\n<p id=\"submittingExam7\" style=\"display:none;text-align:center;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\"><\/p>\n\n<div class=\"watupro-exam-description\" id=\"description-quiz-7\"><p>\u039f\u03b9 10 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c0\u03bf\u03c5 \u03b1\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03bf\u03cd\u03bd \u03b1\u03c6\u03bf\u03c1\u03bf\u03cd\u03bd \u03c3\u03c4\u03b7\u03bd \u03cd\u03bb\u03b7 \u03c4\u03b7\u03c2 \u0393\u0384 \u0393\u03c5\u03bc\u03bd\u03b1\u03c3\u03af\u03bf\u03c5 \u03bc\u03ad\u03c7\u03c1\u03b9 \u0394\u03b9\u03b1\u03c4\u03ae\u03c1\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u0395\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1\u03c2.<\/p>\n<p>\u038c\u03c4\u03b1\u03bd \u03c4\u03b9\u03c2 \u03bf\u03bb\u03bf\u03ba\u03bb\u03b7\u03c1\u03ce\u03c3\u03b5\u03b9\u03c2 \u03c0\u03ac\u03c4\u03b1 \"\u0391\u03c0\u03bf\u03c4\u03b5\u03bb\u03ad\u03c3\u03bc\u03b1\u03c4\u03b1\" \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b4\u03b5\u03b9\u03c2 \u03c4\u03b7\u03bd \u03b5\u03c0\u03af\u03b4\u03bf\u03c3\u03ae \u03c3\u03bf\u03c5 \u03ba\u03b1\u03b9 \u03c4\u03b9\u03c2 \u03c3\u03c9\u03c3\u03c4\u03ad\u03c2 \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2.<\/p>\n<\/div>\n\n<form action=\"\" method=\"post\" class=\"quiz-form\" id=\"quiz-7\"  enctype=\"multipart\/form-data\" >\n<div class='watu-question ' id='question-1' style=';'><div id='questionWrap-1'  class='   watupro-question-id-62'>\n\t\t\t<div class='question-content'><p><span class='watupro_num'>1. <\/span>\u0394\u03cd\u03bf <input type=\"text\" size=\"10\" name=\"gap_62_1\" class=\"watupro-gap answer answerof-62\" value=\"\"   > \u03c3\u03ce\u03bc\u03b1\u03c4\u03b1 \u03ac\u03bb\u03bb\u03bf\u03c4\u03b5 \u03ad\u03bb\u03ba\u03bf\u03bd\u03c4\u03b1\u03b9 \u03ba\u03b1\u03b9 \u03ac\u03bb\u03bb\u03bf\u03c4\u03b5 \u03b1\u03c0\u03c9\u03b8\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9. \u03a4\u03bf \u03b3\u03b5\u03b3\u03bf\u03bd\u03cc\u03c2 \u03b1\u03c5\u03c4\u03cc \u03bc\u03b1\u03c2 \u03b1\u03bd\u03b1\u03b3\u03ba\u03ac\u03b6\u03b5\u03b9 \u03bd\u03b1 \u03b4\u03b5\u03c7\u03c4\u03bf\u03cd\u03bc\u03b5 \u03cc\u03c4\u03b9 \u03c5\u03c0\u03ac\u03c1\u03c7\u03bf\u03c5\u03bd \u03c4\u03bf\u03c5\u03bb\u03ac\u03c7\u03b9\u03c3\u03c4\u03bf\u03bd <input type=\"text\" size=\"10\" name=\"gap_62_2\" class=\"watupro-gap answer answerof-62\" value=\"\"   > \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03b5\u03c4\u03b9\u03ba\u03ac \u03b5\u03af\u03b4\u03b7 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf\u03c5. \u03a4\u03b1 \u03c3\u03ce\u03bc\u03b1\u03c4\u03b1 \u03c0\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 \u03cc\u03bc\u03bf\u03b9\u03b1 \u03c6\u03bf\u03c1\u03c4\u03b9\u03c3\u03bc\u03ad\u03bd\u03b1 \u03bc\u03b5 \u03c4\u03b7 \u03b3\u03c5\u03ac\u03bb\u03b9\u03bd\u03b7 \u03c1\u03ac\u03b2\u03b4\u03bf (\u03b1\u03c0\u03c9\u03b8\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03b1\u03c5\u03c4\u03ae\u03bd) \u03c0\u03bf\u03c5 \u03c4\u03b7\u03bd \u03c4\u03c1\u03af\u03c8\u03b1\u03bc\u03b5 \u03bc\u03b5 \u03bc\u03b5\u03c4\u03b1\u03be\u03c9\u03c4\u03cc \u03cd\u03c6\u03b1\u03c3\u03bc\u03b1, \u03c4\u03b1 \u03bb\u03ad\u03bc\u03b5 <input type=\"text\" size=\"10\" name=\"gap_62_3\" class=\"watupro-gap answer answerof-62\" value=\"\"   > \u03c6\u03bf\u03c1\u03c4\u03b9\u03c3\u03bc\u03ad\u03bd\u03b1 \u03ba\u03b1\u03b9 \u03b1\u03c5\u03c4\u03ac \u03c0\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 \u03cc\u03bc\u03bf\u03b9\u03b1 \u03c6\u03bf\u03c1\u03c4\u03b9\u03c3\u03bc\u03ad\u03bd\u03b1 \u03bc\u03b5 \u03c0\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03ae \u03c1\u03ac\u03b2\u03b4\u03bf \u03c0\u03bf\u03c5 \u03c4\u03b7\u03bd \u03c4\u03c1\u03af\u03c8\u03b1\u03bc\u03b5 \u03bc\u03b5 \u03bc\u03ac\u03bb\u03bb\u03b9\u03bd\u03bf \u03cd\u03c6\u03b1\u03c3\u03bc\u03b1 (\u03b1\u03c0\u03c9\u03b8\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03b1\u03c5\u03c4\u03ae\u03bd) \u03c4\u03b1 \u03bb\u03ad\u03bc\u03b5 <input type=\"text\" size=\"10\" name=\"gap_62_4\" class=\"watupro-gap answer answerof-62\" value=\"\"   > \u03c6\u03bf\u03c1\u03c4\u03b9\u03c3\u03bc\u03ad\u03bd\u03b1.<\/p>\n<input type='hidden' name='question_id[]' id='qID_1' value='62' \/><input type='hidden' id='answerType62' value='gaps'><!-- end question-content--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-2' style=';'><div id='questionWrap-2'  class='   watupro-question-id-63'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>2. <\/span>\u039f\u03b9 \u03b4\u03cd\u03bf \u03c3\u03c6\u03b1\u03af\u03c1\u03b5\u03c2 \u03ba\u03c1\u03ad\u03bc\u03bf\u03bd\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03af\u03c3\u03bf\u03c5 \u03bc\u03ae\u03ba\u03bf\u03c5\u03c2 \u03bd\u03ae\u03bc\u03b1\u03c4\u03b1, \u03b5\u03af\u03bd\u03b1\u03b9 \u03c6\u03bf\u03c1\u03c4\u03b9\u03c3\u03bc\u03ad\u03bd\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03b9\u03c3\u03bf\u03c1\u03c1\u03bf\u03c0\u03bf\u03cd\u03bd \u03c3\u03c4\u03b9\u03c2 \u03b8\u03ad\u03c3\u03b5\u03b9\u03c2 \u03c0\u03bf\u03c5 \u03c6\u03b1\u03af\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7\u03bd \u03b5\u03b9\u03ba\u03cc\u03bd\u03b1. \u03a0\u03ac\u03bd\u03c9 \u03c3\u03c4\u03b7\u03bd \u03ba\u03cc\u03ba\u03ba\u03b9\u03bd\u03b7 \u03c3\u03c6\u03b1\u03af\u03c1\u03b1 \u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c0\u03bf\u03c5 \u03b1\u03c3\u03ba\u03b5\u03af\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03c0\u03c1\u03ac\u03c3\u03b9\u03bd\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7:<br \/>\r\n<br \/>\r\n<div id=\"attachment_1414\" style=\"width: 330px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2014\/04\/image25.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-1414\" class=\" wp-image-1414\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2014\/04\/image25-300x261.jpg\" alt=\"\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 2\" width=\"320\" height=\"278\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2014\/04\/image25-300x261.jpg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2014\/04\/image25.jpg 875w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/a><p id=\"caption-attachment-1414\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 2<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_2' value='63' \/><input type='hidden' id='answerType63' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-63[]' id='answer-id-210' class='answer   answerof-63 ' value='210'   \/><label for='answer-id-210' id='answer-label-210' class=' answer'><span>\u0391<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-63[]' id='answer-id-211' class='answer   answerof-63 ' value='211'   \/><label for='answer-id-211' id='answer-label-211' class=' answer'><span>\u0392<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-63[]' id='answer-id-212' class='answer   answerof-63 ' value='212'   \/><label for='answer-id-212' id='answer-label-212' class=' answer'><span>\u0393<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-63[]' id='answer-id-213' class='answer   answerof-63 ' value='213'   \/><label for='answer-id-213' id='answer-label-213' class=' answer'><span>\u0394<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-3' style=';'><div id='questionWrap-3'  class='   watupro-question-id-64'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>3. <\/span>\u0394\u03b9\u03b1\u03b8\u03ad\u03c4\u03bf\u03c5\u03bc\u03b5 \u03b4\u03cd\u03bf \u03bc\u03b9\u03ba\u03c1\u03ad\u03c2 \u03cc\u03bc\u03bf\u03b9\u03b5\u03c2 \u03bc\u03b5\u03c4\u03b1\u03bb\u03bb\u03b9\u03ba\u03ad\u03c2 \u03c3\u03c6\u03b1\u03af\u03c1\u03b5\u03c2 \u0391 \u03ba\u03b1\u03b9 \u0392. \u0397 \u0391 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c6\u03bf\u03c1\u03c4\u03b9\u03c3\u03bc\u03ad\u03bd\u03b7 \u03bc\u03b5 8\u03bcC \u03ba\u03b1\u03b9 \u03b7 \u0392 \u03b1\u03c6\u03cc\u03c1\u03c4\u03b9\u03c3\u03c4\u03b7.<br \/>\r\n\u03a6\u03ad\u03c1\u03bd\u03bf\u03c5\u03bc\u03b5 \u03c3\u03b5 \u03b5\u03c0\u03b1\u03c6\u03ae \u03c4\u03b9\u03c2 \u03b4\u03cd\u03bf \u03c3\u03c6\u03b1\u03af\u03c1\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03bc\u03b5\u03c4\u03ac \u03c4\u03b9\u03c2 \u03b1\u03c0\u03bf\u03bc\u03b1\u03ba\u03c1\u03cd\u03bd\u03bf\u03c5\u03bc\u03b5 \u03c3\u03b5 \u03b1\u03c0\u03cc\u03c3\u03c4\u03b1\u03c3\u03b7 2m. \u03a0\u03cc\u03c3\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c0\u03bf\u03c5 \u03b1\u03bb\u03bb\u03b7\u03bb\u03b5\u03c0\u03b9\u03b4\u03c1\u03bf\u03cd\u03bd; \u0394\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 K=9\u00b710<sup>9<\/sup>N\u00b7m<sup>2<\/sup>\/C<sup>2<\/sup>.<br \/>\r\n<br \/>\r\n<div id=\"attachment_1418\" style=\"width: 380px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2014\/04\/image26.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-1418\" class=\" wp-image-1418\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2014\/04\/image26-300x104.jpg\" alt=\"\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 3\" width=\"370\" height=\"128\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2014\/04\/image26-300x104.jpg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2014\/04\/image26-1024x357.jpg 1024w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2014\/04\/image26.jpg 1040w\" sizes=\"auto, (max-width: 370px) 100vw, 370px\" \/><\/a><p id=\"caption-attachment-1418\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 3<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_3' value='64' \/><input type='hidden' id='answerType64' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-64[]' id='answer-id-214' class='answer   answerof-64 ' value='214'   \/><label for='answer-id-214' id='answer-label-214' class=' answer'><span>64\u039d<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-64[]' id='answer-id-215' class='answer   answerof-64 ' value='215'   \/><label for='answer-id-215' id='answer-label-215' class=' answer'><span>36\u039d<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-64[]' id='answer-id-216' class='answer   answerof-64 ' value='216'   \/><label for='answer-id-216' id='answer-label-216' class=' answer'><span>0\u039d<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-64[]' id='answer-id-217' class='answer   answerof-64 ' value='217'   \/><label for='answer-id-217' id='answer-label-217' class=' answer'><span>0,036\u039d<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-4' style=';'><div id='questionWrap-4'  class='   watupro-question-id-65'>\n\t\t\t<div class='question-content'><span class='watupro_num'>4. <\/span>\u03a3\u03c4\u03b9\u03c2\u00a0\u03c3\u03c7\u03ad\u03c3\u03b5\u03b9\u03c2 \u03c4\u03b7\u03c2 \u03b1\u03c1\u03b9\u03c3\u03c4\u03b5\u03c1\u03ae\u03c2\u00a0\u03c3\u03c4\u03ae\u03bb\u03b7\u03c2\u00a0\u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03bf\u03b9\u03c7\u03af\u03c3\u03c4\u03b5 \u03c4\u03b1 \u03bc\u03b5\u03b3\u03ad\u03b8\u03b7 \u03c4\u03bf\u03c5 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03c3\u03bc\u03bf\u03cd \u03c4\u03b7\u03c2 \u03b4\u03b5\u03be\u03b9\u03ac\u03c2 \u03c3\u03c4\u03ae\u03bb\u03b7\u03c2.(\u039a\u03ac\u03bd\u03b5 \u03ba\u03bb\u03b9\u03ba \u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03c3\u03bf\u03c5 \u03c3\u03c4\u03b7 \u03b4\u03b5\u03be\u03b9\u03ac)<div class='question-choices'><table class=\"question-choices watupro-matrix-droppable\" id=\"watuPROMatrixDroppable_65\"><tr><td class=\"watupro-matrix-left-cell\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-7eae00546e137b265200592a35f8a0d7_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#92;&#102;&#114;&#97;&#99;&#123;&#113;&#125;&#123;&#116;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"29\" width=\"8\" style=\"vertical-align: -11px;\"\/><\/td>\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable65\" id=\"watuPRODroppableCell345\"><div class='question-choices'><div class=\"watupro-matrix-right\"><div id=\"watuproNMatrixSelection-0-0\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-0\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell345', 0);return false;\">\u0388\u03bd\u03c4\u03b1\u03c3\u03b7 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03c1\u03b5\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2<!--WTPMD5e88ed2b40f10dd90d45a100ab726d36a--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-0-1\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-1\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell345', 1);return false;\">\u0395\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03c1\u03b5\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2<!--WTPMD546ed6fec4400b9c8b395bc2db8112e9e--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-0-2\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-2\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell345', 2);return false;\">\u03a4\u03ac\u03c3\u03b7<!--WTPMD55d9ac8761980b7b5375786cabb359d0f--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-0-3\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-3\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell345', 3);return false;\">\u0391\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7<!--WTPMD585666e70f0b90ddd36a09cbc22d7845a--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-65 watupro-nmatrix-answer-field\"  id=\"field-watuPRODroppableCell345\" name=\"matrix-left-345\" value=\"\"><\/td><\/tr><tr><td class=\"watupro-matrix-left-cell\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-b72074c27d0e67127d30bf77946a4c08_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#92;&#102;&#114;&#97;&#99;&#123;&#86;&#125;&#123;&#73;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"33\" width=\"13\" style=\"vertical-align: -11px;\"\/><\/td>\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable65\" id=\"watuPRODroppableCell346\"><div class='question-choices'><div class=\"watupro-matrix-right\"><div id=\"watuproNMatrixSelection-1-0\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-0\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell346', 0);return false;\">\u0388\u03bd\u03c4\u03b1\u03c3\u03b7 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03c1\u03b5\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2<!--WTPMD5e88ed2b40f10dd90d45a100ab726d36a--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-1-1\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-1\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell346', 1);return false;\">\u0395\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03c1\u03b5\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2<!--WTPMD546ed6fec4400b9c8b395bc2db8112e9e--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-1-2\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-2\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell346', 2);return false;\">\u03a4\u03ac\u03c3\u03b7<!--WTPMD55d9ac8761980b7b5375786cabb359d0f--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-1-3\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-3\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell346', 3);return false;\">\u0391\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7<!--WTPMD585666e70f0b90ddd36a09cbc22d7845a--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-65 watupro-nmatrix-answer-field\"  id=\"field-watuPRODroppableCell346\" name=\"matrix-left-346\" value=\"\"><\/td><\/tr><tr><td class=\"watupro-matrix-left-cell\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-956008f8107b6e01733fc0c31ef7b704_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#86;&#32;&#92;&#99;&#100;&#111;&#116;&#32;&#73;&#32;&#92;&#99;&#100;&#111;&#116;&#32;&#116;\" title=\"Rendered by QuickLaTeX.com\" height=\"11\" width=\"49\" style=\"vertical-align: 0px;\"\/><\/td>\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable65\" id=\"watuPRODroppableCell347\"><div class='question-choices'><div class=\"watupro-matrix-right\"><div id=\"watuproNMatrixSelection-2-0\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-0\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell347', 0);return false;\">\u0388\u03bd\u03c4\u03b1\u03c3\u03b7 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03c1\u03b5\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2<!--WTPMD5e88ed2b40f10dd90d45a100ab726d36a--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-2-1\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-1\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell347', 1);return false;\">\u0395\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03c1\u03b5\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2<!--WTPMD546ed6fec4400b9c8b395bc2db8112e9e--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-2-2\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-2\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell347', 2);return false;\">\u03a4\u03ac\u03c3\u03b7<!--WTPMD55d9ac8761980b7b5375786cabb359d0f--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-2-3\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-3\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell347', 3);return false;\">\u0391\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7<!--WTPMD585666e70f0b90ddd36a09cbc22d7845a--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-65 watupro-nmatrix-answer-field\"  id=\"field-watuPRODroppableCell347\" name=\"matrix-left-347\" value=\"\"><\/td><\/tr><tr><td class=\"watupro-matrix-left-cell\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-ef193fd1b51488a349143220b60db452_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#92;&#102;&#114;&#97;&#99;&#123;&#80;&#125;&#123;&#73;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"33\" width=\"13\" style=\"vertical-align: -11px;\"\/><\/td>\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable65\" id=\"watuPRODroppableCell348\"><div class='question-choices'><div class=\"watupro-matrix-right\"><div id=\"watuproNMatrixSelection-3-0\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-0\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell348', 0);return false;\">\u0388\u03bd\u03c4\u03b1\u03c3\u03b7 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03c1\u03b5\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2<!--WTPMD5e88ed2b40f10dd90d45a100ab726d36a--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-3-1\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-1\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell348', 1);return false;\">\u0395\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03c1\u03b5\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2<!--WTPMD546ed6fec4400b9c8b395bc2db8112e9e--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-3-2\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-2\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell348', 2);return false;\">\u03a4\u03ac\u03c3\u03b7<!--WTPMD55d9ac8761980b7b5375786cabb359d0f--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-3-3\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-3\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell348', 3);return false;\">\u0391\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7<!--WTPMD585666e70f0b90ddd36a09cbc22d7845a--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-65 watupro-nmatrix-answer-field\"  id=\"field-watuPRODroppableCell348\" name=\"matrix-left-348\" value=\"\"><\/td><\/tr><\/table><\/div><input type='hidden' name='question_id[]' id='qID_4' value='65' \/><input type='hidden' id='answerType65' value='nmatrix'><!-- end question-content--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-5' style=';'><div id='questionWrap-5'  class='   watupro-question-id-66'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>5. <\/span>\u0395\u03c0\u03b9\u03bb\u03ad\u03be\u03c4\u03b5 \u03c4\u03b9\u03c2 \u03c3\u03c9\u03c3\u03c4\u03ad\u03c2 \u03c0\u03c1\u03bf\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2.<\/div><input type='hidden' name='question_id[]' id='qID_5' value='66' \/><input type='hidden' id='answerType66' value='checkbox'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-66[]' id='answer-id-219' class='answer   answerof-66 watupro_max_selections-2' value='219'  onclick='return WatuPRO.maxSelections(66,2, this);' \/><label for='answer-id-219' id='answer-label-219' class=' answer'><span>\u0397 \u03b1\u03b3\u03c9\u03b3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03c9\u03bd \u03bc\u03b5\u03c4\u03ac\u03bb\u03bb\u03c9\u03bd \u03bf\u03c6\u03b5\u03af\u03bb\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b1 \u03b5\u03bb\u03b5\u03cd\u03b8\u03b5\u03c1\u03b1 \u03b9\u03cc\u03bd\u03c4\u03b1 \u03c0\u03bf\u03c5 \u03c5\u03c0\u03ac\u03c1\u03c7\u03bf\u03c5\u03bd \u03c3\u03c4\u03bf \u03b5\u03c3\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03cc \u03c4\u03bf\u03c5\u03c2.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-66[]' id='answer-id-220' class='answer   answerof-66 watupro_max_selections-2' value='220'  onclick='return WatuPRO.maxSelections(66,2, this);' \/><label for='answer-id-220' id='answer-label-220' class=' answer'><span>\u03a9\u03c2 \u03c6\u03bf\u03c1\u03ac \u03c4\u03bf\u03c5 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03c1\u03b5\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2 \u03bf\u03c1\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03b7 \u03c6\u03bf\u03c1\u03ac \u03c4\u03b7\u03c2 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2 \u03c4\u03c9\u03bd \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03bf\u03bd\u03af\u03c9\u03bd.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-66[]' id='answer-id-221' class='answer   answerof-66 watupro_max_selections-2' value='221'  onclick='return WatuPRO.maxSelections(66,2, this);' \/><label for='answer-id-221' id='answer-label-221' class=' answer'><span>\u0397 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03c6\u03bf\u03c1\u03c4\u03af\u03c9\u03bd \u03c0\u03c1\u03bf\u03c2 \u03bc\u03af\u03b1 \u03ba\u03b1\u03c4\u03b5\u03c5\u03b8\u03c5\u03bd\u03c3\u03b7 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03b5\u03af \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03cc \u03c1\u03b5\u03cd\u03bc\u03b1.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-66[]' id='answer-id-222' class='answer   answerof-66 watupro_max_selections-2' value='222'  onclick='return WatuPRO.maxSelections(66,2, this);' \/><label for='answer-id-222' id='answer-label-222' class=' answer'><span>\u03a3\u03c4\u03b1 \u03ac\u03ba\u03c1\u03b1 \u03b5\u03bd\u03cc\u03c2 \u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03ac\u03c4\u03b7 \u03b1\u03bd \u03b4\u03b9\u03b9\u03c0\u03bb\u03b1\u03c3\u03b9\u03ac\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03c4\u03ac\u03c3\u03b7 \u03b4\u03b9\u03c0\u03bb\u03b1\u03c3\u03b9\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9 \u03ba\u03b1\u03b9 \u03b7 \u03ad\u03bd\u03c4\u03b1\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c1\u03b5\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c0\u03bf\u03c5 \u03c4\u03bf\u03bd \u03b4\u03b9\u03b1\u03c1\u03c1\u03ad\u03b5\u03b9.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-6' style=';'><div id='questionWrap-6'  class='   watupro-question-id-67'>\n\t\t\t<div class='question-content'><span class='watupro_num'>6. <\/span>\u0391\u03bd\u03c4\u03b9\u03c3\u03c4\u03bf\u03b9\u03c7\u03af\u03c3\u03c4\u03b5\u00a0\u03c4\u03b9\u03c2 \u03ba\u03b1\u03c4\u03b1\u03c3\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2 \u03c4\u03c9\u03bd \u03c4\u03c1\u03b9\u03ce\u03bd \u03bb\u03b1\u03bc\u03c0\u03c4\u03ae\u03c1\u03c9\u03bd (\u03b1\u03bd\u03b1\u03bc\u03bc\u03ad\u03bd\u03bf\u03b9, \u03c3\u03b2\u03b7\u03c3\u03bc\u03ad\u03bd\u03bf\u03b9) \u0391, \u0392 \u03ba\u03b1\u03b9 \u0393, \u03c3\u03c4\u03b9\u03c2 \u03ba\u03b1\u03c4\u03b1\u03c3\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2 \u03c4\u03c9\u03bd \u03b4\u03b9\u03b1\u03ba\u03bf\u03c0\u03c4\u03ce\u03bd \u03b4<sub>1<\/sub> \u03ba\u03b1\u03b9 \u03b4<sub>2<\/sub> (\u03b1\u03bd\u03bf\u03b9\u03c7\u03c4\u03cc\u03c2, \u03ba\u03bb\u03b5\u03b9\u03c3\u03c4\u03cc\u03c2) \u03c4\u03b7\u03c2 \u03b1\u03c1\u03b9\u03c3\u03c4\u03b5\u03c1\u03ae\u03c2 \u03c3\u03c4\u03ae\u03bb\u03b7\u03c2. (\u039a\u03ac\u03bd\u03b5 \u03ba\u03bb\u03b9\u03ba \u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03c3\u03bf\u03c5 \u03c3\u03c4\u03b7 \u03b4\u03b5\u03be\u03b9\u03ac \u03c3\u03c4\u03ae\u03bb\u03b7)<br \/>\r\n<br \/>\r\n<div id=\"attachment_1421\" style=\"width: 348px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2014\/04\/image27.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-1421\" class=\"wp-image-1421\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2014\/04\/image27-288x300.jpg\" alt=\"\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 6\" width=\"338\" height=\"352\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2014\/04\/image27-288x300.jpg 288w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2014\/04\/image27-984x1024.jpg 984w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2014\/04\/image27.jpg 1037w\" sizes=\"auto, (max-width: 338px) 100vw, 338px\" \/><\/a><p id=\"caption-attachment-1421\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 6<\/p><\/div><div class='question-choices'><table class=\"question-choices watupro-matrix-droppable\" id=\"watuPROMatrixDroppable_67\"><tr><td class=\"watupro-matrix-left-cell\">\u03b41 \u03ba\u03b1\u03b9 \u03b42 \u03ba\u03bb\u03b5\u03b9\u03c3\u03c4\u03bf\u03af<\/td>\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable67\" id=\"watuPRODroppableCell349\"><div class='question-choices'><div class=\"watupro-matrix-right\"><div id=\"watuproNMatrixSelection-0-0\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-0\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell349', 0);return false;\">\u0391\u03bd\u03ac\u03b2\u03bf\u03c5\u03bd \u03bf\u03b9 \u0391 \u03ba\u03b1\u03b9 \u0392<!--WTPMD5c618ceb5d37702a215f84d340bc6bccc--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-0-1\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-1\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell349', 1);return false;\">\u0391\u03bd\u03ac\u03b2\u03bf\u03c5\u03bd \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03c4\u03c1\u03b5\u03b9\u03c2 \u03bb\u03ac\u03bc\u03c0\u03b5\u03c2<!--WTPMD559204163ff8e1c44a402cd8c91b6c058--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-0-2\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-2\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell349', 2);return false;\"> \u0391\u03bd\u03ac\u03b2\u03b5\u03b9 \u03bc\u03cc\u03bd\u03bf \u03b7 \u0391<!--WTPMD5134c79bc51b069cf20afecc0b2958826--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-0-3\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-3\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell349', 3);return false;\">\u0391\u03bd\u03ac\u03b2\u03bf\u03c5\u03bd \u03b7 \u0391 \u03ba\u03b1\u03b9 \u0393<!--WTPMD552604224db5fb05436f975a7a9506887--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-67 watupro-nmatrix-answer-field\"  id=\"field-watuPRODroppableCell349\" name=\"matrix-left-349\" value=\"\"><\/td><\/tr><tr><td class=\"watupro-matrix-left-cell\">\u03b41 \u03b1\u03bd\u03bf\u03b9\u03c7\u03c4\u03cc\u03c2 \u03ba\u03b1\u03b9 \u03b42 \u03ba\u03bb\u03b5\u03b9\u03c3\u03c4\u03cc\u03c2<\/td>\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable67\" id=\"watuPRODroppableCell350\"><div class='question-choices'><div class=\"watupro-matrix-right\"><div id=\"watuproNMatrixSelection-1-0\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-0\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell350', 0);return false;\">\u0391\u03bd\u03ac\u03b2\u03bf\u03c5\u03bd \u03bf\u03b9 \u0391 \u03ba\u03b1\u03b9 \u0392<!--WTPMD5c618ceb5d37702a215f84d340bc6bccc--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-1-1\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-1\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell350', 1);return false;\">\u0391\u03bd\u03ac\u03b2\u03bf\u03c5\u03bd \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03c4\u03c1\u03b5\u03b9\u03c2 \u03bb\u03ac\u03bc\u03c0\u03b5\u03c2<!--WTPMD559204163ff8e1c44a402cd8c91b6c058--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-1-2\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-2\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell350', 2);return false;\"> \u0391\u03bd\u03ac\u03b2\u03b5\u03b9 \u03bc\u03cc\u03bd\u03bf \u03b7 \u0391<!--WTPMD5134c79bc51b069cf20afecc0b2958826--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-1-3\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-3\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell350', 3);return false;\">\u0391\u03bd\u03ac\u03b2\u03bf\u03c5\u03bd \u03b7 \u0391 \u03ba\u03b1\u03b9 \u0393<!--WTPMD552604224db5fb05436f975a7a9506887--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-67 watupro-nmatrix-answer-field\"  id=\"field-watuPRODroppableCell350\" name=\"matrix-left-350\" value=\"\"><\/td><\/tr><tr><td class=\"watupro-matrix-left-cell\">\u03b41 \u03ba\u03bb\u03b5\u03b9\u03c3\u03c4\u03cc\u03c2 \u03ba\u03b1\u03b9 \u03b42 \u03b1\u03bd\u03bf\u03b9\u03c7\u03c4\u03cc\u03c2<\/td>\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable67\" id=\"watuPRODroppableCell351\"><div class='question-choices'><div class=\"watupro-matrix-right\"><div id=\"watuproNMatrixSelection-2-0\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-0\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell351', 0);return false;\">\u0391\u03bd\u03ac\u03b2\u03bf\u03c5\u03bd \u03bf\u03b9 \u0391 \u03ba\u03b1\u03b9 \u0392<!--WTPMD5c618ceb5d37702a215f84d340bc6bccc--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-2-1\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-1\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell351', 1);return false;\">\u0391\u03bd\u03ac\u03b2\u03bf\u03c5\u03bd \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03c4\u03c1\u03b5\u03b9\u03c2 \u03bb\u03ac\u03bc\u03c0\u03b5\u03c2<!--WTPMD559204163ff8e1c44a402cd8c91b6c058--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-2-2\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-2\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell351', 2);return false;\"> \u0391\u03bd\u03ac\u03b2\u03b5\u03b9 \u03bc\u03cc\u03bd\u03bf \u03b7 \u0391<!--WTPMD5134c79bc51b069cf20afecc0b2958826--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-2-3\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-3\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell351', 3);return false;\">\u0391\u03bd\u03ac\u03b2\u03bf\u03c5\u03bd \u03b7 \u0391 \u03ba\u03b1\u03b9 \u0393<!--WTPMD552604224db5fb05436f975a7a9506887--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-67 watupro-nmatrix-answer-field\"  id=\"field-watuPRODroppableCell351\" name=\"matrix-left-351\" value=\"\"><\/td><\/tr><tr><td class=\"watupro-matrix-left-cell\">\u03b41 \u03ba\u03b1\u03b9 \u03b42 \u03b1\u03bd\u03bf\u03b9\u03c7\u03c4\u03bf\u03af<\/td>\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable67\" id=\"watuPRODroppableCell352\"><div class='question-choices'><div class=\"watupro-matrix-right\"><div id=\"watuproNMatrixSelection-3-0\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-0\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell352', 0);return false;\">\u0391\u03bd\u03ac\u03b2\u03bf\u03c5\u03bd \u03bf\u03b9 \u0391 \u03ba\u03b1\u03b9 \u0392<!--WTPMD5c618ceb5d37702a215f84d340bc6bccc--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-3-1\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-1\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell352', 1);return false;\">\u0391\u03bd\u03ac\u03b2\u03bf\u03c5\u03bd \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03c4\u03c1\u03b5\u03b9\u03c2 \u03bb\u03ac\u03bc\u03c0\u03b5\u03c2<!--WTPMD559204163ff8e1c44a402cd8c91b6c058--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-3-2\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-2\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell352', 2);return false;\"> \u0391\u03bd\u03ac\u03b2\u03b5\u03b9 \u03bc\u03cc\u03bd\u03bf \u03b7 \u0391<!--WTPMD5134c79bc51b069cf20afecc0b2958826--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-3-3\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-3\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell352', 3);return false;\">\u0391\u03bd\u03ac\u03b2\u03bf\u03c5\u03bd \u03b7 \u0391 \u03ba\u03b1\u03b9 \u0393<!--WTPMD552604224db5fb05436f975a7a9506887--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-67 watupro-nmatrix-answer-field\"  id=\"field-watuPRODroppableCell352\" name=\"matrix-left-352\" value=\"\"><\/td><\/tr><\/table><\/div><input type='hidden' name='question_id[]' id='qID_6' value='67' \/><input type='hidden' id='answerType67' value='nmatrix'><!-- end question-content--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-7' style=';'><div id='questionWrap-7'  class='   watupro-question-id-68'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>7. <\/span>\u039f \u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03ac\u03c4\u03b7\u03c2 \u03bc\u03b5 R \u03c4\u03c1\u03bf\u03c6\u03bf\u03b4\u03bf\u03c4\u03b5\u03af\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c4\u03ac\u03c3\u03b7 V=60V \u03ba\u03b1\u03b9 \u03c4\u03bf \u03b1\u03bc\u03c0\u03b5\u03c1\u03cc\u03bc\u03b5\u03c4\u03c1\u03bf \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 3\u0391.\u00a0 \u0391\u03bd \u03bf \u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03ac\u03c4\u03b7\u03c2 \u03b1\u03bd\u03c4\u03b9\u03ba\u03b1\u03c4\u03b1\u03c3\u03c4\u03b1\u03b8\u03b5\u03af \u03b1\u03c0\u03cc \u03ac\u03bb\u03bb\u03bf\u03bd \u03b4\u03b9\u03c0\u03bb\u03ac\u03c3\u03b9\u03b1\u03c2 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2, \u03bf\u03b9 \u03b5\u03bd\u03b4\u03b5\u03af\u03be\u03b5\u03b9\u03c2 \u03c4\u03c9\u03bd \u03bf\u03c1\u03b3\u03ac\u03bd\u03c9\u03bd ( \u03b2\u03bf\u03bb\u03c4\u03cc\u03bc\u03b5\u03c4\u03c1\u03bf, \u03b1\u03bc\u03c0\u03b5\u03c1\u03cc\u03bc\u03b5\u03c4\u03c1\u03bf) \u03b8\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9:<br \/>\r\n<br \/>\r\n<div id=\"attachment_1425\" style=\"width: 317px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2014\/04\/image28.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-1425\" class=\" wp-image-1425\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2014\/04\/image28-300x288.jpg\" alt=\"\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 7\" width=\"307\" height=\"294\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2014\/04\/image28-300x288.jpg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2014\/04\/image28-1024x985.jpg 1024w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2014\/04\/image28.jpg 1110w\" sizes=\"auto, (max-width: 307px) 100vw, 307px\" \/><\/a><p id=\"caption-attachment-1425\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 7<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_7' value='68' \/><input type='hidden' id='answerType68' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-68[]' id='answer-id-223' class='answer   answerof-68 ' value='223'   \/><label for='answer-id-223' id='answer-label-223' class=' answer'><span>\u03a4\u03bf \u03b2\u03bf\u03bb\u03c4\u03cc\u03bc\u03b5\u03c4\u03c1\u03bf \u03b8\u03b1 \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 60V \u03ba\u03b1\u03b9 \u03c4\u03bf \u03b1\u03bc\u03c0\u03b5\u03c1\u03cc\u03bc\u03b5\u03c4\u03c1\u03bf 1,5\u0391.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-68[]' id='answer-id-224' class='answer   answerof-68 ' value='224'   \/><label for='answer-id-224' id='answer-label-224' class=' answer'><span>\u03a4\u03bf \u03b2\u03bf\u03bb\u03c4\u03cc\u03bc\u03b5\u03c4\u03c1\u03bf \u03b8\u03b1 \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 120V \u03ba\u03b1\u03b9 \u03c4\u03bf \u03b1\u03bc\u03c0\u03b5\u03c1\u03cc\u03bc\u03b5\u03c4\u03c1\u03bf 3\u0391.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-68[]' id='answer-id-225' class='answer   answerof-68 ' value='225'   \/><label for='answer-id-225' id='answer-label-225' class=' answer'><span>\u03a4\u03bf \u03b2\u03bf\u03bb\u03c4\u03cc\u03bc\u03b5\u03c4\u03c1\u03bf \u03b8\u03b1 \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 60V \u03ba\u03b1\u03b9 \u03c4\u03bf \u03b1\u03bc\u03c0\u03b5\u03c1\u03cc\u03bc\u03b5\u03c4\u03c1\u03bf 6\u0391.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-68[]' id='answer-id-226' class='answer   answerof-68 ' value='226'   \/><label for='answer-id-226' id='answer-label-226' class=' answer'><span>\u03a4\u03bf \u03b1\u03bc\u03c0\u03b5\u03c1\u03cc\u03bc\u03b5\u03c4\u03c1\u03bf \u03ba\u03b1\u03b9 \u03c4\u03bf \u03b2\u03bf\u03bb\u03c4\u03cc\u03bc\u03b5\u03c4\u03c1\u03bf \u03b8\u03b1 \u03b4\u03b5\u03af\u03c7\u03bd\u03bf\u03c5\u03bd \u03cc, \u03c4\u03b9 \u03ad\u03b4\u03b5\u03b9\u03c7\u03bd\u03b1\u03bd \u03ba\u03b1\u03b9 \u03c0\u03c1\u03b9\u03bd \u03c4\u03b7\u03bd \u03b1\u03bd\u03c4\u03b9\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-8' style=';'><div id='questionWrap-8'  class='   watupro-question-id-69'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>8. <\/span>\u039c\u03af\u03b1 \u03bb\u03ac\u03bc\u03c0\u03b1 \u03c0\u03c5\u03c1\u03b1\u03ba\u03c4\u03ce\u03c3\u03b5\u03c9\u03c2 \u03b3\u03c1\u03ac\u03c6\u03b5\u03b9 \u03b5\u03c0\u03ac\u03bd\u03c9 \u03c4\u03b7\u03c2 220V\/100W. \u0391\u03c5\u03c4\u03cc \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9:<\/div><input type='hidden' name='question_id[]' id='qID_8' value='69' \/><input type='hidden' id='answerType69' value='checkbox'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-69[]' id='answer-id-227' class='answer   answerof-69 watupro_max_selections-3' value='227'  onclick='return WatuPRO.maxSelections(69,3, this);' \/><label for='answer-id-227' id='answer-label-227' class=' answer'><span>\u0397 \u03bb\u03ac\u03bc\u03c0\u03b1 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03b5\u03af \u03ba\u03b1\u03bd\u03bf\u03bd\u03b9\u03ba\u03ac \u03bc\u03b5 \u03c4\u03ac\u03c3\u03b7 \u03ba\u03ac\u03c4\u03c9 \u03b1\u03c0\u03cc 220V \u03ba\u03b1\u03b9 \u03ba\u03b1\u03c4\u03b1\u03bd\u03b1\u03bb\u03ce\u03bd\u03b5\u03b9 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03ae \u03b9\u03c3\u03c7\u03cd 100W.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-69[]' id='answer-id-228' class='answer   answerof-69 watupro_max_selections-3' value='228'  onclick='return WatuPRO.maxSelections(69,3, this);' \/><label for='answer-id-228' id='answer-label-228' class=' answer'><span>\u0397 \u03bb\u03ac\u03bc\u03c0\u03b1 \u03cc\u03c4\u03b1\u03bd \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03b5\u03af \u03ba\u03b1\u03bd\u03bf\u03bd\u03b9\u03ba\u03ac \u03b4\u03b9\u03b1\u03c1\u03c1\u03ad\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c1\u03b5\u03cd\u03bc\u03b1 0,45\u0391.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-69[]' id='answer-id-229' class='answer   answerof-69 watupro_max_selections-3' value='229'  onclick='return WatuPRO.maxSelections(69,3, this);' \/><label for='answer-id-229' id='answer-label-229' class=' answer'><span>\u0391\u03bd \u03b7 \u03bb\u03ac\u03bc\u03c0\u03b1 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03ae\u03c3\u03b5\u03b9 \u03ba\u03b1\u03bd\u03bf\u03bd\u03b9\u03ba\u03ac \u03b3\u03b9\u03b1 10 \u03ce\u03c1\u03b5\u03c2 \u03b8\u03b1 \u03ba\u03b1\u03c4\u03b1\u03bd\u03b1\u03bb\u03ce\u03c3\u03b5\u03b9 \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1 1kwh.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-69[]' id='answer-id-230' class='answer   answerof-69 watupro_max_selections-3' value='230'  onclick='return WatuPRO.maxSelections(69,3, this);' \/><label for='answer-id-230' id='answer-label-230' class=' answer'><span>\u038c\u03c4\u03b1\u03bd \u03b2\u03ac\u03bb\u03bf\u03c5\u03bc\u03b5 \u03c3\u03c4\u03b7 \u03bb\u03ac\u03bc\u03c0\u03b1 \u03c4\u03ac\u03c3\u03b7 220V, \u03b8\u03b1 \u03ba\u03b1\u03c4\u03b1\u03bd\u03b1\u03bb\u03ce\u03bd\u03b5\u03b9 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03ae \u03b9\u03c3\u03c7\u03cd 100W.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-9' style=';'><div id='questionWrap-9'  class='   watupro-question-id-70'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>9. <\/span>\u03a4\u03bf \u03b5\u03ba\u03ba\u03c1\u03b5\u03bc\u03ad\u03c2 \u03c3\u03c4\u03bf video \u03cc\u03c4\u03b1\u03bd \u03b1\u03b9\u03c9\u03c1\u03b5\u03af\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7 \u0393\u03b7 \u03ad\u03c7\u03b5\u03b9 \u03c0\u03b5\u03c1\u03af\u03bf\u03b4\u03bf 4s. \u0392\u03ac\u03bb\u03b5 \u03c3\u03b5 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7 \u03c4\u03bf Video \u03ba\u03b1\u03b9 \u03b2\u03c1\u03b5\u03c2 \u03c4\u03b9\u03c2 \u03c3\u03c9\u03c3\u03c4\u03ad\u03c2 \u03c0\u03c1\u03bf\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2.[KGVID width=\"750\" height=\"340\"]http:\/\/viewonphysics.gr\/wp-content\/uploads\/2014\/06\/\u0395\u03ba\u03ba\u03c1\u03b5\u03bc\u03ad\u03c2.mp4[\/KGVID]<br \/>\r\n<br \/>\r\n&nbsp;<\/div><input type='hidden' name='question_id[]' id='qID_9' value='70' \/><input type='hidden' id='answerType70' value='checkbox'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-70[]' id='answer-id-231' class='answer   answerof-70 watupro_max_selections-2' value='231'  onclick='return WatuPRO.maxSelections(70,2, this);' \/><label for='answer-id-231' id='answer-label-231' class=' answer'><span>\u0397 \u03c0\u03b5\u03c1\u03af\u03bf\u03b4\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03b5\u03ba\u03ba\u03c1\u03b5\u03bc\u03bf\u03cd\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 2,6s<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-70[]' id='answer-id-232' class='answer   answerof-70 watupro_max_selections-2' value='232'  onclick='return WatuPRO.maxSelections(70,2, this);' \/><label for='answer-id-232' id='answer-label-232' class=' answer'><span>\u0397 \u03c0\u03b5\u03c1\u03af\u03bf\u03b4\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03b5\u03ba\u03ba\u03c1\u03b5\u03bc\u03bf\u03cd\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 1s.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-70[]' id='answer-id-233' class='answer   answerof-70 watupro_max_selections-2' value='233'  onclick='return WatuPRO.maxSelections(70,2, this);' \/><label for='answer-id-233' id='answer-label-233' class=' answer'><span>\u03a4\u03bf \u03b5\u03ba\u03ba\u03c1\u03b5\u03bc\u03ad\u03c2 \u03b1\u03b9\u03c9\u03c1\u03b5\u03af\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7 \u03a3\u03b5\u03bb\u03ae\u03bd\u03b7.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-70[]' id='answer-id-234' class='answer   answerof-70 watupro_max_selections-2' value='234'  onclick='return WatuPRO.maxSelections(70,2, this);' \/><label for='answer-id-234' id='answer-label-234' class=' answer'><span>\u03a4\u03bf \u03b5\u03ba\u03ba\u03c1\u03b5\u03bc\u03ad\u03c2 \u03b1\u03b9\u03c9\u03c1\u03b5\u03af\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf\u03bd \u03c0\u03bb\u03b1\u03bd\u03ae\u03c4\u03b7 \u0394\u03af\u03b1.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-10' style=';'><div id='questionWrap-10'  class='   watupro-question-id-71'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>10. <\/span>\u0397 \u03b5\u03b9\u03ba\u03cc\u03bd\u03b1 \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03ad\u03bd\u03b1 \u03c3\u03c4\u03b9\u03b3\u03bc\u03b9\u03cc\u03c4\u03c5\u03c0\u03bf \u03b5\u03bd\u03cc\u03c2 \u03b5\u03b3\u03ba\u03ac\u03c1\u03c3\u03b9\u03bf\u03c5 \u03ba\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c0\u03bf\u03c5 \u03c4\u03c1\u03ad\u03c7\u03b5\u03b9 \u03bc\u03b5 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 60m\/s. \u0397 \u03c3\u03c5\u03c7\u03bd\u03cc\u03c4\u03b7\u03c4\u03ac \u03c4\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9:<br \/>\r\n<br \/>\r\n<div id=\"attachment_1429\" style=\"width: 347px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2014\/04\/image30.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-1429\" class=\" wp-image-1429\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2014\/04\/image30-300x105.jpg\" alt=\"\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 10\" width=\"337\" height=\"118\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2014\/04\/image30-300x105.jpg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2014\/04\/image30-1024x360.jpg 1024w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2014\/04\/image30.jpg 1374w\" sizes=\"auto, (max-width: 337px) 100vw, 337px\" \/><\/a><p id=\"caption-attachment-1429\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 10<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_10' value='71' \/><input type='hidden' id='answerType71' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-71[]' id='answer-id-235' class='answer   answerof-71 ' value='235'   \/><label for='answer-id-235' id='answer-label-235' class=' answer'><span>10Hz<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-71[]' id='answer-id-236' class='answer   answerof-71 ' value='236'   \/><label for='answer-id-236' id='answer-label-236' class=' answer'><span>15Hz<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-71[]' id='answer-id-237' class='answer   answerof-71 ' value='237'   \/><label for='answer-id-237' id='answer-label-237' class=' answer'><span>30Hz<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-71[]' id='answer-id-238' class='answer   answerof-71 ' value='238'   \/><label for='answer-id-238' id='answer-label-238' 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