{"id":21921,"date":"2018-11-19T15:38:34","date_gmt":"2018-11-19T10:08:34","guid":{"rendered":"http:\/\/mycbseguide.com\/blog\/?p=21921"},"modified":"2018-12-17T14:32:41","modified_gmt":"2018-12-17T09:02:41","slug":"cbse-question-paper-2014-class-12-physics","status":"publish","type":"post","link":"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2014-class-12-physics\/","title":{"rendered":"CBSE Question Paper 2014 Class 12 Physics"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_76 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2014-class-12-physics\/#Class_12_Physics_chapters_wise_list\" >Class 12 Physics chapters wise list<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2014-class-12-physics\/#CBSE_Question_Paper_2014_Class_12_Physics\" >CBSE Question Paper 2014 Class 12 Physics<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2014-class-12-physics\/#SECTION_%E2%80%93_A\" >SECTION \u2013 A<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2014-class-12-physics\/#Section_%E2%80%93_B\" >Section \u2013 B<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2014-class-12-physics\/#Section_%E2%80%93_D\" >Section \u2013 D<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2014-class-12-physics\/#Section_%E2%80%93_E\" >Section \u2013 E<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2014-class-12-physics\/#OR\" >OR<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2014-class-12-physics\/#OR-2\" >OR<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2014-class-12-physics\/#OR-3\" >OR<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2014-class-12-physics\/#Last_Year_Question_Paper_Class_12_Physics_2014\" >Last Year Question Paper Class 12\u00a0 Physics 2014<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2014-class-12-physics\/#Previous_Year_Question_Paper_for_class_12_in_PDF\" >Previous Year Question Paper for class 12 in PDF<\/a><\/li><\/ul><\/nav><\/div>\n<p><strong>CBSE Question Paper 2014 class 12 Physics<\/strong>\u00a0conducted by Central Board of Secondary Education, New Delhi in the month of March 2014. CBSE previous year question papers with solution are available in myCBSEguide mobile app and cbse guide website. The Best CBSE App for students and teachers is myCBSEguide which provides complete study material and practice papers to cbse schools in India and abroad.<\/p>\n<p style=\"text-align: center;\"><strong>CBSE Question Paper 2014 class 12\u00a0Physics <\/strong><strong><a class=\"button\" href=\"https:\/\/mycbseguide.com\/downloads\/cbse-class-12-physics\/1251\/cbse-last-year-papers\/3\/\">Download as PDF<\/a><\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright\" src=\"https:\/\/media-mycbseguide.s3.ap-south-1.amazonaws.com\/images\/blog\/Class%2012%20physics%20book%2012.jpg\" alt=\"CBSE Question Paper 2014 Class 12 Physics\" width=\"141\" height=\"173\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Class_12_Physics_chapters_wise_list\"><\/span>Class 12 Physics chapters wise list<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ol>\n<li>Electric Charges and Fields<\/li>\n<li>Electrostatic Potential and Capacitance<\/li>\n<li>Current Electricity<\/li>\n<li>Moving Charges and Magnetism<\/li>\n<li>Magnetism and Matter<\/li>\n<li>Electromagnetic Induction<\/li>\n<li>Alternating Current<\/li>\n<li>Electromagnetic Waves<\/li>\n<li>Ray Optics and Optical Instruments<\/li>\n<li>Wave Optics<\/li>\n<li>Dual Nature of Radiation and Matter<\/li>\n<li>Atoms<\/li>\n<li>Nuclei<\/li>\n<li>Semiconductor Electronic: Material, Devices and Simple Circuits<\/li>\n<li>Communication Systems<\/li>\n<\/ol>\n<h2><span class=\"ez-toc-section\" id=\"CBSE_Question_Paper_2014_Class_12_Physics\"><\/span>CBSE Question Paper 2014 Class 12 Physics<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>Time allowed: 3 hours<br \/>\nMaximum Marks: 70<\/strong><\/p>\n<p><strong>General Instructions :<\/strong><\/p>\n<ol start=\"1\">\n<li>All questions are compulsory. There are 26 questions in all.<\/li>\n<li>This question paper has five sections: Section A, Section B, Section C, Section D and Section E.<\/li>\n<li>Section A contains five questions of one mark each, Section B contains five questions of two marks each, Section C contains twelve questions of three marks each, Section D contains one value based question of four marks and Section E contains three questions of five marks each.<\/li>\n<li>There is no overall choice. However, an internal choice has been provided in one question of two marks, one question of three marks and all the three questions of five marks weightage. You have to attempt only one of the choices in such questions.<\/li>\n<li>You may use the following values of physical constants wherever necessary :<br \/>\n<span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\" tabindex=\"-1\" contenteditable=\"false\" data-cke-widget-wrapper=\"1\" data-cke-filter=\"off\" data-cke-display-name=\"math\" data-cke-widget-id=\"203\"><span class=\"math-tex cke_widget_element\" data-cke-survive=\"1\" data-cke-widget-data=\"%7B%22math%22%3A%22%7Btex%7D%20c%20%3D%203%20%5C%5Ctimes%20%7B10%5E8%7D%20m%2Fs%7B%2Ftex%7D%22%2C%22classes%22%3A%7B%22math-tex%22%3A1%7D%7D\" data-cke-widget-upcasted=\"1\" data-cke-widget-keep-attr=\"0\" data-widget=\"mathjaxlatex\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi? c = 3 \\times {10^8} m\/s\" \/><\/span><img decoding=\"async\" class=\"cke_reset cke_widget_mask\" src=\"data:image\/gif;base64,R0lGODlhAQABAPABAP\/\/\/wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\" \/><span class=\"cke_reset cke_widget_drag_handler_container\"><img loading=\"lazy\" decoding=\"async\" class=\"cke_reset cke_widget_drag_handler\" title=\"Click and drag to move\" draggable=\"true\" src=\"data:image\/gif;base64,R0lGODlhAQABAPABAP\/\/\/wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\" width=\"15\" height=\"15\" data-cke-widget-drag-handler=\"1\" \/><\/span><\/span><br \/>\n<span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\" tabindex=\"-1\" contenteditable=\"false\" data-cke-widget-wrapper=\"1\" data-cke-filter=\"off\" data-cke-display-name=\"math\" data-cke-widget-id=\"202\"><span class=\"math-tex cke_widget_element\" data-cke-survive=\"1\" data-cke-widget-data=\"%7B%22math%22%3A%22%7Btex%7D%20h%20%3D%206.63%20%5C%5Ctimes%20%7B10%5E%7B%20-%2034%7D%7D%20Js%7B%2Ftex%7D%22%2C%22classes%22%3A%7B%22math-tex%22%3A1%7D%7D\" data-cke-widget-upcasted=\"1\" data-cke-widget-keep-attr=\"0\" data-widget=\"mathjaxlatex\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi? h = 6.63 \\times {10^{ - 34}} Js\" \/><\/span><img decoding=\"async\" class=\"cke_reset cke_widget_mask\" src=\"data:image\/gif;base64,R0lGODlhAQABAPABAP\/\/\/wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\" \/><span class=\"cke_reset cke_widget_drag_handler_container\"><img loading=\"lazy\" decoding=\"async\" class=\"cke_reset cke_widget_drag_handler\" title=\"Click and drag to move\" draggable=\"true\" src=\"data:image\/gif;base64,R0lGODlhAQABAPABAP\/\/\/wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\" width=\"15\" height=\"15\" data-cke-widget-drag-handler=\"1\" \/><\/span><\/span><br \/>\n<span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\" tabindex=\"-1\" contenteditable=\"false\" data-cke-widget-wrapper=\"1\" data-cke-filter=\"off\" data-cke-display-name=\"math\" data-cke-widget-id=\"201\"><span class=\"math-tex cke_widget_element\" data-cke-survive=\"1\" data-cke-widget-data=\"%7B%22math%22%3A%22%7Btex%7D%20e%20%3D%201.6%20%5C%5Ctimes%20%7B10%5E%7B%20-%2019%7D%7DC%7B%2Ftex%7D%22%2C%22classes%22%3A%7B%22math-tex%22%3A1%7D%7D\" data-cke-widget-upcasted=\"1\" data-cke-widget-keep-attr=\"0\" data-widget=\"mathjaxlatex\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi? e = 1.6 \\times {10^{ - 19}}C\" \/><\/span><img decoding=\"async\" class=\"cke_reset cke_widget_mask\" src=\"data:image\/gif;base64,R0lGODlhAQABAPABAP\/\/\/wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\" \/><span class=\"cke_reset cke_widget_drag_handler_container\"><img loading=\"lazy\" decoding=\"async\" class=\"cke_reset cke_widget_drag_handler\" title=\"Click and drag to move\" draggable=\"true\" src=\"data:image\/gif;base64,R0lGODlhAQABAPABAP\/\/\/wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\" width=\"15\" height=\"15\" data-cke-widget-drag-handler=\"1\" \/><\/span><\/span><br \/>\n<span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\" tabindex=\"-1\" contenteditable=\"false\" data-cke-widget-wrapper=\"1\" data-cke-filter=\"off\" data-cke-display-name=\"math\" data-cke-widget-id=\"200\"><span class=\"math-tex cke_widget_element\" data-cke-survive=\"1\" data-cke-widget-data=\"%7B%22math%22%3A%22%7Btex%7D%20%7B%5C%5Cmu%20_0%7D%20%3D%204%5C%5Cpi%20%5C%5Ctimes%20%7B10%5E%7B%20-%207%7D%7D%5C%5C%3B%20Tm%7BA%5E%7B%20-%201%7D%7D%7B%2Ftex%7D%22%2C%22classes%22%3A%7B%22math-tex%22%3A1%7D%7D\" data-cke-widget-upcasted=\"1\" data-cke-widget-keep-attr=\"0\" data-widget=\"mathjaxlatex\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi? {\\mu _0} = 4\\pi \\times {10^{ - 7}}\\; Tm{A^{ - 1}}\" \/><\/span><img decoding=\"async\" class=\"cke_reset cke_widget_mask\" src=\"data:image\/gif;base64,R0lGODlhAQABAPABAP\/\/\/wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\" \/><span class=\"cke_reset cke_widget_drag_handler_container\"><img loading=\"lazy\" decoding=\"async\" class=\"cke_reset cke_widget_drag_handler\" title=\"Click and drag to move\" draggable=\"true\" src=\"data:image\/gif;base64,R0lGODlhAQABAPABAP\/\/\/wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\" width=\"15\" height=\"15\" data-cke-widget-drag-handler=\"1\" \/><\/span><\/span><br \/>\n<span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\" tabindex=\"-1\" contenteditable=\"false\" data-cke-widget-wrapper=\"1\" data-cke-filter=\"off\" data-cke-display-name=\"math\" data-cke-widget-id=\"199\"><span class=\"math-tex cke_widget_element\" data-cke-survive=\"1\" data-cke-widget-data=\"%7B%22math%22%3A%22%7Btex%7D%20%7B%5C%5Cvarepsilon%20_0%7D%20%3D%208.854%20%5C%5Ctimes%20%7B10%5E%7B%20-%2012%7D%7D%7BC%5E2%7D%7BN%5E%7B%20-%201%7D%7D%20%7Bm%5E%7B%20-%202%7D%7D%7B%2Ftex%7D%22%2C%22classes%22%3A%7B%22math-tex%22%3A1%7D%7D\" data-cke-widget-upcasted=\"1\" data-cke-widget-keep-attr=\"0\" data-widget=\"mathjaxlatex\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi? {\\varepsilon _0} = 8.854 \\times {10^{ - 12}}{C^2}{N^{ - 1}} {m^{ - 2}}\" \/><\/span><img decoding=\"async\" class=\"cke_reset cke_widget_mask\" src=\"data:image\/gif;base64,R0lGODlhAQABAPABAP\/\/\/wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\" \/><span class=\"cke_reset cke_widget_drag_handler_container\"><img loading=\"lazy\" decoding=\"async\" class=\"cke_reset cke_widget_drag_handler\" title=\"Click and drag to move\" draggable=\"true\" src=\"data:image\/gif;base64,R0lGODlhAQABAPABAP\/\/\/wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\" width=\"15\" height=\"15\" data-cke-widget-drag-handler=\"1\" \/><\/span><\/span><br \/>\n<span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\" tabindex=\"-1\" contenteditable=\"false\" data-cke-widget-wrapper=\"1\" data-cke-filter=\"off\" data-cke-display-name=\"math\" data-cke-widget-id=\"198\"><span class=\"math-tex cke_widget_element\" data-cke-survive=\"1\" data-cke-widget-data=\"%7B%22math%22%3A%22%7Btex%7D%20%5C%5Cfrac%7B1%7D%7B%7B4%5C%5Cpi%20%7B%5C%5Cvarepsilon%20_0%7D%7D%7D%20%3D%209%20%5C%5Ctimes%20%7B10%5E9%7D%20N%7Bm%5E2%7D%7BC%5E%7B%20-%202%7D%7D%7B%2Ftex%7D%22%2C%22classes%22%3A%7B%22math-tex%22%3A1%7D%7D\" data-cke-widget-upcasted=\"1\" data-cke-widget-keep-attr=\"0\" data-widget=\"mathjaxlatex\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi? \\frac{1}{{4\\pi {\\varepsilon _0}}} = 9 \\times {10^9} N{m^2}{C^{ - 2}}\" \/><\/span><img decoding=\"async\" class=\"cke_reset cke_widget_mask\" src=\"data:image\/gif;base64,R0lGODlhAQABAPABAP\/\/\/wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\" \/><span class=\"cke_reset cke_widget_drag_handler_container\"><img loading=\"lazy\" decoding=\"async\" class=\"cke_reset cke_widget_drag_handler\" title=\"Click and drag to move\" draggable=\"true\" src=\"data:image\/gif;base64,R0lGODlhAQABAPABAP\/\/\/wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\" width=\"15\" height=\"15\" data-cke-widget-drag-handler=\"1\" \/><\/span><\/span><br \/>\nMass of electron (m<sub>e<\/sub>) <span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\" tabindex=\"-1\" contenteditable=\"false\" data-cke-widget-wrapper=\"1\" data-cke-filter=\"off\" data-cke-display-name=\"math\" data-cke-widget-id=\"197\"><span class=\"math-tex cke_widget_element\" data-cke-survive=\"1\" data-cke-widget-data=\"%7B%22math%22%3A%22%7Btex%7D%20%3D%209.1%20%5C%5Ctimes%20%7B10%5E%7B%20-%2031%7D%7Dkg%7B%2Ftex%7D%22%2C%22classes%22%3A%7B%22math-tex%22%3A1%7D%7D\" data-cke-widget-upcasted=\"1\" data-cke-widget-keep-attr=\"0\" data-widget=\"mathjaxlatex\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi? = 9.1 \\times {10^{ - 31}}kg\" \/><\/span><img decoding=\"async\" class=\"cke_reset cke_widget_mask\" src=\"data:image\/gif;base64,R0lGODlhAQABAPABAP\/\/\/wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\" \/><span class=\"cke_reset cke_widget_drag_handler_container\"><img loading=\"lazy\" decoding=\"async\" class=\"cke_reset cke_widget_drag_handler\" title=\"Click and drag to move\" draggable=\"true\" src=\"data:image\/gif;base64,R0lGODlhAQABAPABAP\/\/\/wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\" width=\"15\" height=\"15\" data-cke-widget-drag-handler=\"1\" \/><\/span><\/span><br \/>\nMass of neutron <span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\" tabindex=\"-1\" contenteditable=\"false\" data-cke-widget-wrapper=\"1\" data-cke-filter=\"off\" data-cke-display-name=\"math\" data-cke-widget-id=\"196\"><span class=\"math-tex cke_widget_element\" data-cke-survive=\"1\" data-cke-widget-data=\"%7B%22math%22%3A%22%7Btex%7D%20%3D%201.675%20%5C%5Ctimes%20%7B10%5E%7B%20-%2027%7D%7Dkg%7B%2Ftex%7D%22%2C%22classes%22%3A%7B%22math-tex%22%3A1%7D%7D\" data-cke-widget-upcasted=\"1\" data-cke-widget-keep-attr=\"0\" data-widget=\"mathjaxlatex\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi? = 1.675 \\times {10^{ - 27}}kg\" \/><\/span><img decoding=\"async\" class=\"cke_reset cke_widget_mask\" src=\"data:image\/gif;base64,R0lGODlhAQABAPABAP\/\/\/wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\" \/><span class=\"cke_reset cke_widget_drag_handler_container\"><img loading=\"lazy\" decoding=\"async\" class=\"cke_reset cke_widget_drag_handler\" title=\"Click and drag to move\" draggable=\"true\" src=\"data:image\/gif;base64,R0lGODlhAQABAPABAP\/\/\/wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\" width=\"15\" height=\"15\" data-cke-widget-drag-handler=\"1\" \/><\/span><\/span><br \/>\nMass of proton <span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\" tabindex=\"-1\" contenteditable=\"false\" data-cke-widget-wrapper=\"1\" data-cke-filter=\"off\" data-cke-display-name=\"math\" data-cke-widget-id=\"195\"><span class=\"math-tex cke_widget_element\" data-cke-survive=\"1\" data-cke-widget-data=\"%7B%22math%22%3A%22%7Btex%7D%20%3D%201.673%20%5C%5Ctimes%20%7B10%5E%7B%20-%2027%7D%7Dkg%7B%2Ftex%7D%22%2C%22classes%22%3A%7B%22math-tex%22%3A1%7D%7D\" data-cke-widget-upcasted=\"1\" data-cke-widget-keep-attr=\"0\" data-widget=\"mathjaxlatex\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi? = 1.673 \\times {10^{ - 27}}kg\" \/><\/span><img decoding=\"async\" class=\"cke_reset cke_widget_mask\" src=\"data:image\/gif;base64,R0lGODlhAQABAPABAP\/\/\/wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\" \/><span class=\"cke_reset cke_widget_drag_handler_container\"><img loading=\"lazy\" decoding=\"async\" class=\"cke_reset cke_widget_drag_handler\" title=\"Click and drag to move\" draggable=\"true\" src=\"data:image\/gif;base64,R0lGODlhAQABAPABAP\/\/\/wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\" width=\"15\" height=\"15\" data-cke-widget-drag-handler=\"1\" \/><\/span><\/span><br \/>\nAvogadro\u2019s number <span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\" tabindex=\"-1\" contenteditable=\"false\" data-cke-widget-wrapper=\"1\" data-cke-filter=\"off\" data-cke-display-name=\"math\" data-cke-widget-id=\"194\"><span class=\"math-tex cke_widget_element\" data-cke-survive=\"1\" data-cke-widget-data=\"%7B%22math%22%3A%22%7Btex%7D%20%3D%206.023%20%5C%5Ctimes%20%7B10%5E%7B23%7D%7D%7B%2Ftex%7D%22%2C%22classes%22%3A%7B%22math-tex%22%3A1%7D%7D\" data-cke-widget-upcasted=\"1\" data-cke-widget-keep-attr=\"0\" data-widget=\"mathjaxlatex\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi? = 6.023 \\times {10^{23}}\" \/><\/span><img decoding=\"async\" class=\"cke_reset cke_widget_mask\" src=\"data:image\/gif;base64,R0lGODlhAQABAPABAP\/\/\/wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\" \/><span class=\"cke_reset cke_widget_drag_handler_container\"><img loading=\"lazy\" decoding=\"async\" class=\"cke_reset cke_widget_drag_handler\" title=\"Click and drag to move\" draggable=\"true\" src=\"data:image\/gif;base64,R0lGODlhAQABAPABAP\/\/\/wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\" width=\"15\" height=\"15\" data-cke-widget-drag-handler=\"1\" \/><\/span><\/span> per gram mole<br \/>\nBoltzmann constant = <span class=\"cke_widget_wrapper cke_widget_inline cke_widget_selected\" tabindex=\"-1\" contenteditable=\"false\" data-cke-widget-wrapper=\"1\" data-cke-filter=\"off\" data-cke-display-name=\"math\" data-cke-widget-id=\"193\"><span class=\"math-tex cke_widget_element\" data-cke-survive=\"1\" data-cke-widget-data=\"%7B%22math%22%3A%22%7Btex%7D%20%3D%201.38%20%5C%5Ctimes%20%7B10%5E%7B%20-%2023%7D%7DJ%7BK%5E%7B%20-%201%7D%7D%7B%2Ftex%7D%22%2C%22classes%22%3A%7B%22math-tex%22%3A1%7D%7D\" data-cke-widget-upcasted=\"1\" data-cke-widget-keep-attr=\"0\" data-widget=\"mathjaxlatex\"><img decoding=\"async\" src=\"https:\/\/elpiscart.com\/cgi-bin\/mathtex.cgi? = 1.38 \\times {10^{ - 23}}J{K^{ - 1}}\" \/><\/span><img decoding=\"async\" class=\"cke_reset cke_widget_mask\" src=\"data:image\/gif;base64,R0lGODlhAQABAPABAP\/\/\/wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\" \/><span class=\"cke_reset cke_widget_drag_handler_container\"><img loading=\"lazy\" decoding=\"async\" class=\"cke_reset cke_widget_drag_handler\" title=\"Click and drag to move\" draggable=\"true\" src=\"data:image\/gif;base64,R0lGODlhAQABAPABAP\/\/\/wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\" width=\"15\" height=\"15\" data-cke-widget-drag-handler=\"1\" \/><\/span><\/span><\/li>\n<\/ol>\n<hr \/>\n<div style=\"text-align: center;\">\n<h3><span class=\"ez-toc-section\" id=\"SECTION_%E2%80%93_A\"><\/span><strong>SECTION \u2013 A<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: left;\">1. What is the electric flux through a cube of side 1 cm which encloses an electric dipole?<\/p>\n<p style=\"text-align: left;\">2. A concave lens of refractive index 1.5 is immersed in a medium of refractive index 1.65. What is the nature of the lens?<\/p>\n<p style=\"text-align: left;\">3. How are side bands produced?<\/p>\n<p style=\"text-align: left;\">4. Graph showing the variation of current versus voltage for a material GaAs is shown in the figure. Identify the region of<\/p>\n<p style=\"text-align: left;\">a) Negative resistance<\/p>\n<p style=\"text-align: left;\">b) Where Ohm\u2019s law is obeyed<\/p>\n<p style=\"text-align: left;\"><img decoding=\"async\" id=\"Picture 1\" src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image008.png\" data-cke-saved-src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image008.png\" \/><\/p>\n<p style=\"text-align: left;\">5. Define capacitor reactance. Write its S.I. units.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Section_%E2%80%93_B\"><\/span><strong>Section \u2013 B<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: left;\">6. Show that the radius of the orbit in hydrogen atom varies as n2 , where n is the principal quantum number of the atom.<\/p>\n<p style=\"text-align: left;\">7. Distinguish between \u2018intrinsic\u2019 and \u2018extrinsic\u2019 semiconductors.<\/p>\n<p style=\"text-align: left;\">8. Use the mirror equation to show that an object placed between f and 2f of a concave mirror produces a real image beyond 2f.<\/p>\n<p style=\"text-align: left;\">OR<\/p>\n<p style=\"text-align: left;\">Find the expression for intensity of transmitted light when a polaroid sheet is rotated between two crossed polaroids. In which position of the polaroid sheet will the transmitted intensity be maximum?<\/p>\n<p style=\"text-align: left;\">9. Use Kirchhoff\u2019s rules to obtain conditions for the balanced condition in a Wheatstone bridge.<\/p>\n<p style=\"text-align: left;\">10. A proton and an \u03b1 -particle have the same de-Broglie wavelength. Determine the ration of (i) their accelerating potentials (ii) their speeds.<\/p>\n<p><strong>Section \u2013 C<\/strong><\/p>\n<p style=\"text-align: left;\">11. Draw a block diagram of a detector for AM signal and show, using necessary processes and the waveforms, how the original message signal is detected from the input AM wave.<\/p>\n<p style=\"text-align: left;\">12. A cell of emf \u2018E\u2019 and internal resistance \u2018r\u2019 is connected across a variable load resistor R. draw the plots of the terminal voltage V versus (i) R and (ii) the current I.<\/p>\n<p style=\"text-align: left;\">It is found that when R = \u2126 4 , the current is 1 A and when R is increased to 9\u2126 , the current reduces to 0.5 A. Find the values of the emf E and internal resistance r.<\/p>\n<p style=\"text-align: left;\">13. Two capacitors of unknown capacitances C<sub>1<\/sub> and C<sub>2<\/sub> are connected first in series and then in parallel across a battery of 100 V. If the energy stored in the two combinations is 0.045 J and 0.25 J respectively, determine the value of C<sub>1<\/sub> and C<sub>2<\/sub>. Also calculate the charge on each capacitor in parallel combination.<\/p>\n<p style=\"text-align: left;\">14. State the principle of working of a galvanometer.<\/p>\n<p style=\"text-align: left;\">A galvanometer of resistance G is converted into a voltmeter to measure upto V volts by connecting a resistance R<sub>1<\/sub> in series with the coil. If a resistance R<sub>2<\/sub>; is connected in series with it, then it can measure upto V\/2 volts. Find the resistance, in terms of R<sub>1<\/sub> and R<sub>2<\/sub>, required be connected to convert it into a voltmeter that can read upto 2 V. Also find the resistance G of the galvanometer in terms of R<sub>1<\/sub> and R<sub>2<\/sub>.<\/p>\n<p style=\"text-align: left;\">15. With what considerations in view, a photodiode is fabricated? State its working with the help of a suitable diagram.<\/p>\n<p style=\"text-align: left;\">Even though the current in the forward bias is known to be more than in the reverse bias, yet the photodiode works in reverse bias. What is the reason?<\/p>\n<p style=\"text-align: left;\">16. Draw a circuit diagram of a transistor amplifier in CE configuration.<\/p>\n<p style=\"text-align: left;\">Define the terms: (i) Input resistance and (ii) Current amplification factor. How are these determined using typical input and output characteristics?<\/p>\n<p style=\"text-align: left;\">17. Answer the following questions:<\/p>\n<p style=\"text-align: left;\">a) In a double slit experiment using light of wavelength 600 nm, the angular width of the fringe formed on a distant screen is 0.1\u00b0. Find the spacing between the two slits.<\/p>\n<p style=\"text-align: left;\">b) Light of wavelength 5000 <img decoding=\"async\" src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image009.png\" data-cke-saved-src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image009.png\" \/>propagating is air gets partly reflected from the surface of water. How will the wavelength and frequencies of the reflected and refracted light be affected?<\/p>\n<p style=\"text-align: left;\">18. An inductor L of inductance X<sub>L<\/sub> is connected in series with a bulb B and an ac source. How would brightness of the bulb change when (i) number of turn in the inductor is reduced, (ii) an iron rod is inserted in the inductor and (iii) a capacitor of reactance X X C L is inserted in series in the circuit. Justify your answer in each case.<\/p>\n<p style=\"text-align: left;\">19. Name the parts of the electromagnetic spectrum which is<\/p>\n<p style=\"text-align: left;\">a) Suitable for radar system used in aircraft navigation.<\/p>\n<p style=\"text-align: left;\">b) Used to treat muscular strain.<\/p>\n<p style=\"text-align: left;\">c) Used as a diagnostic tool in medicine.<\/p>\n<p style=\"text-align: left;\">Write in brief, how these waves can be produced.<\/p>\n<p style=\"text-align: left;\">20. a) A giant refracting telescope has an objective lens of focal length 15 m. If an eye piece of focal length 1.0 cm is used, what is the angular magnification of the telescope?<\/p>\n<p style=\"text-align: left;\">b) If this telescope is used to view the moon, what is the diameter of the image of the moon formed by the objective lens? The diameter of the moon is 3.48 \u00d7 10<sup>6<\/sup>m and the radius of lunar orbit is 3.8 \u00d7 10<sup>8<\/sup>m.<\/p>\n<p style=\"text-align: left;\">21. Write Einstein\u2019s photoelectric equation and mention which important features in photoelectric effect can be explained with the help of this equation.<\/p>\n<p style=\"text-align: left;\">The maximum kinetic energy of the photoelectrons gets doubled when the wavelength of light incident on the surface changes from \u03bb<sub>1<\/sub> to \u03bb<sub>2<\/sub> to. Derive the expressions for the threshold wavelength \u03bb<sub>0<\/sub> and work function for the metal surface.<\/p>\n<p style=\"text-align: left;\">22. In the study of Geiger-Marsdon experiment on scattering of \u03b1 particles by a thin foil of gold, draw the trajectory of \u03b1 -particles in the coulomb field of target nucleus. Explain briefly how one gets the information on the size of the nucleus from this study. From the relation R = R<sub>0<\/sub> A<sup>1\/3<\/sup>, R<sub>0<\/sub> is constant and A is the mass number of the nucleus, show that nuclear matter density is independent of A.<\/p>\n<p style=\"text-align: left;\">OR<\/p>\n<p style=\"text-align: left;\">Distinguish between nuclear fission and fusion. Show how in both these processes energy is released.<\/p>\n<p style=\"text-align: left;\">Calculate the energy release in MeV in the deuterium-tritium fusion reaction:<\/p>\n<p style=\"text-align: left;\"><img decoding=\"async\" src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image010.png\" data-cke-saved-src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image010.png\" \/><\/p>\n<p style=\"text-align: left;\">Using the data:<\/p>\n<p style=\"text-align: left;\"><img decoding=\"async\" src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image011.png\" data-cke-saved-src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image011.png\" \/><\/p>\n<p style=\"text-align: left;\"><img decoding=\"async\" src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image012.png\" data-cke-saved-src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image012.png\" \/><\/p>\n<p style=\"text-align: left;\"><img decoding=\"async\" src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image013.png\" data-cke-saved-src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image013.png\" \/><\/p>\n<p style=\"text-align: left;\"><img decoding=\"async\" src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image014.png\" data-cke-saved-src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image014.png\" \/><\/p>\n<p style=\"text-align: left;\"><img decoding=\"async\" src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image015.png\" data-cke-saved-src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image015.png\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Section_%E2%80%93_D\"><\/span><strong>Section \u2013 D<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: left;\">23. A group of students while coming from the school noticed a box marked \u201cDanger H.T. 2200 V\u201d at a substation in the main street. They did not understand the utility of a such a high voltage, while they argued, the supply was only 220 V. They asked their teacher this question the next day. The teacher thought it to be an important question and therefore explained to the whole class.<\/p>\n<p style=\"text-align: left;\">Answer the following questions:<\/p>\n<p style=\"text-align: left;\">a) What device is used to bring the high voltage down to low voltage of a.c. current and what is the principle of its working?<\/p>\n<p style=\"text-align: left;\">b) Is it possible to use this device for bringing down the high dc voltage to the low voltage? Explain.<\/p>\n<p style=\"text-align: left;\">c) Write the values displayed by the students and the teacher.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Section_%E2%80%93_E\"><\/span><strong>Section \u2013 E<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: left;\">24. a) Using Huygen\u2019s construction of secondary wavelets explain how a diffraction pattern is obtained on a screen due to a narrow slit on which a monochromatic beam of light is incident normally.<\/p>\n<p style=\"text-align: left;\">b) Show that the angular width of the first diffraction fringe is half that of the central fringe.<\/p>\n<p style=\"text-align: left;\">c) Explain why the maxima at <img decoding=\"async\" src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image016.png\" data-cke-saved-src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image016.png\" \/>\u00a0become weaker with increasing n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"OR\"><\/span><strong>OR<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: left;\">a) A point object \u2018O\u2019 is kept in a medium of refractive index n1 in front of a convex spherical surface of radius of curvature R which separates the second medium of refractive index n<sub>2<\/sub> from the first one, as shown in the figure.<\/p>\n<p style=\"text-align: left;\">Draw the ray diagram showing the image formation and deduce the relationship between the object distance and the image distance in term of n<sub>1<\/sub>, n<sub>2<\/sub> and R.<\/p>\n<p style=\"text-align: left;\"><img decoding=\"async\" id=\"Picture 3\" src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image017.png\" data-cke-saved-src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image017.png\" \/><\/p>\n<p style=\"text-align: left;\">b) When the image formed above acts as a virtual object for a concave spherical surface separating the medium n<sub>2<\/sub> from n<sub>1<\/sub> (n<sub>2<\/sub> &gt; n<sub>1<\/sub>), draw this ray diagram and write the similar (similar to (a)) relation. Hence obtain the expression for the lens maker\u2019s formula.<\/p>\n<p style=\"text-align: left;\">25. a) An electric dipole of dipole moment <img decoding=\"async\" src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image018.png\" data-cke-saved-src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image018.png\" \/>\u00a0consists of point charges +q and \u2013q separated by a distance 2a apart. Deduce the expression for the electric field <img decoding=\"async\" src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image019.png\" data-cke-saved-src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image019.png\" \/>\u00a0due to the dipole at a distance x from the centre of the dipole on its axial lien in terms of the dipole moment <img decoding=\"async\" src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image018.png\" data-cke-saved-src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image018.png\" \/>. Hence show that in the limit x&gt;&gt;a, <img decoding=\"async\" src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image020.png\" data-cke-saved-src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image020.png\" \/>.<\/p>\n<p style=\"text-align: left;\">b) Given the electric field in the region <img decoding=\"async\" src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image021.png\" data-cke-saved-src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image021.png\" \/>, find the net electric flux through the cube and the charge enclosed by it.<\/p>\n<p style=\"text-align: left;\"><img decoding=\"async\" id=\"Picture 4\" src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image022.png\" data-cke-saved-src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image022.png\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"OR-2\"><\/span>OR<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: left;\">a) Explain, using suitable diagrams, the difference in the behavior of a (i) conductor and (ii) dielectric in the presence of external electric field. Define the terms polarization of the dielectric and write its relation with susceptibility.<\/p>\n<p style=\"text-align: left;\">b) A thin metallic spherical shell of radius R carries a charge Q on its surface. A point charge <img decoding=\"async\" src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image023.png\" data-cke-saved-src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image023.png\" \/>\u00a0is placed at its centre C and an other charge +2Q is placed outside the shell at a distance x from the centre as shown in the figure. Find (i) the force on the charge at the centre of shell and at the point A, (ii) the electric flux through the shell.<\/p>\n<p style=\"text-align: left;\"><img decoding=\"async\" id=\"Picture 5\" src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image024.png\" data-cke-saved-src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image024.png\" \/><\/p>\n<p style=\"text-align: left;\">26. a) State Ampere\u2019s circuital law. Use this law to obtain the expression for the magnetic field inside an air cored toroid of average radius \u2018r\u2019, having \u2018n\u2019 turns per unit length and carrying a steady current I.<\/p>\n<p style=\"text-align: left;\">b) An observer to the left of a solenoid of N turns each of cross section area \u2018A\u2019 observes that a steady current I in it flows in the clockwise direction. Depict the magnetic field lines due to the solenoid specifying its polarity and show that it acts as a bar magnet of magnetic moment m = NIA.<\/p>\n<p style=\"text-align: left;\"><img decoding=\"async\" id=\"Picture 6\" src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image025.png\" data-cke-saved-src=\"http:\/\/media-mycbseguide.s3.amazonaws.com\/images\/cbse\/12\/phy\/2014\/set20\/image025.png\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"OR-3\"><\/span>OR<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: left;\">a) Define mutual inductance and write its S.I. units.<\/p>\n<p style=\"text-align: left;\">b) Derive an expression for the mutual inductance of two long co-axial solenoids of same length wound one over the other.<\/p>\n<p style=\"text-align: left;\">c) In an experiment, two coils c<sub>1<\/sub> and c<sub>2<\/sub> are placed close to each other. Find out the expression for the emf induced in the coil c<sub>1<\/sub> due to a change in the current through the coil c<sub>2<\/sub>.<\/p>\n<\/div>\n<p style=\"text-align: center;\"><strong>These are questions only. To view and download complete question paper with solution install myCBSEguide App from google play store or login to our\u00a0<a href=\"https:\/\/mycbseguide.com\/dashboard\/\">student dashboard<\/a>.<\/strong><\/p>\n<p style=\"text-align: center;\"><b><strong><a class=\"button\" href=\"https:\/\/play.google.com\/store\/apps\/details?id=in.techchefs.MyCBSEGuide&amp;referrer=utm_source%3Dmycbse_bottom%26utm_medium%3Dtext%26utm_campaign%3Dmycbseads\">Download myCBSEguide App<\/a><\/strong><\/b><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Last_Year_Question_Paper_Class_12_Physics_2014\"><\/span>Last Year Question Paper Class 12\u00a0 Physics 2014<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Download class 12 Physics question paper with solution from best CBSE App the myCBSEguide. CBSE class 12 Physics question paper 2014 in PDF format with solution will help you to understand the latest question paper pattern and marking scheme of the CBSE board examination. You will get to know the difficulty level of the question paper.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Previous_Year_Question_Paper_for_class_12_in_PDF\"><\/span>Previous Year Question Paper for class 12 in PDF<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>CBSE question papers 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 209, 2008, 2007, 2006, 2005 and so on for all the subjects are available under this download link. Practicing real question paper certainly helps students to get confidence and improve performance in weak areas.<\/p>\n<ul>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-physics\/1251\/cbse-last-year-papers\/3\/\">Physics<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-chemistry\/1267\/cbse-last-year-papers\/3\/\">Chemistry<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-mathematics\/1284\/cbse-last-year-papers\/3\/\">Mathematics<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-biology\/1298\/cbse-last-year-papers\/3\/\">Biology<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-accountancy\/1315\/cbse-last-year-papers\/3\/\">Accountancy<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-business-studies\/1727\/cbse-last-year-papers\/3\/\">Business Studies<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-economics\/1327\/cbse-last-year-papers\/3\/\">Economics<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-history\/1869\/cbse-last-year-papers\/3\/\">History<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-geography\/1863\/cbse-last-year-papers\/3\/\">Geography<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-political-science\/1879\/cbse-last-year-papers\/3\/\">Political Science<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-physical-education\/1877\/cbse-last-year-papers\/3\/\">Physical Education<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-computer-science\/1851\/cbse-last-year-papers\/3\/\">Computer Science<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-informatics-practices\/1873\/cbse-last-year-papers\/3\/\">Informatics Practices<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-english-core\/1855\/cbse-last-year-papers\/3\/\">English Core<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-hindi-core\/1865\/cbse-last-year-papers\/3\/\">Hindi Core<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-hindi-elective\/1867\/cbse-last-year-papers\/3\/\">Hindi Elective<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12\/1250\/\">Other Subjects<\/a><\/li>\n<\/ul>\n<p>To download CBSE Question Paper class 12 Accountancy, Chemistry, Physics, History, Political Science, Economics, Geography, Computer Science, Home Science, Accountancy, Business Studies and Home Science; do check myCBSEguide app or website. myCBSEguide provides sample papers with solution, test papers for chapter-wise practice, NCERT solutions, NCERT Exemplar solutions, quick revision notes for ready reference, CBSE guess papers and CBSE important question papers. Sample Paper all are made available through\u00a0<a href=\"https:\/\/play.google.com\/store\/apps\/details?id=in.techchefs.MyCBSEGuide&amp;referrer=utm_source%3Dmycbse_bottom%26utm_medium%3Dtext%26utm_campaign%3Dmycbseads\"><strong>the best app for CBSE students<\/strong><\/a>\u00a0and myCBSEguide website.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CBSE Question Paper 2014 class 12 Physics\u00a0conducted by Central Board of Secondary Education, New Delhi in the month of March 2014. CBSE previous year question papers with solution are available in myCBSEguide mobile app and cbse guide website. The Best CBSE App for students and teachers is myCBSEguide which provides complete study material and practice &#8230; <a title=\"CBSE Question Paper 2014 Class 12 Physics\" class=\"read-more\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2014-class-12-physics\/\" aria-label=\"More on CBSE Question Paper 2014 Class 12 Physics\">Read more<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1346,1014,1433],"tags":[147,1527,1342,1563,1564],"class_list":["post-21921","post","type-post","status-publish","format-standard","hentry","category-cbse","category-cbse-question-papers","category-physics-cbse-class-12","tag-cbse-class-12","tag-cbse-question-paper","tag-class-12","tag-last-year-paper-physics-2014","tag-previous-year-paper-2014-physics"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - 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