{"id":4434,"date":"2016-05-16T09:49:00","date_gmt":"2016-05-16T04:19:00","guid":{"rendered":"http:\/\/mycbseguide.com\/blog\/ncert-solutions-class-12-physics-nuceli-part-2\/"},"modified":"2018-10-22T16:30:25","modified_gmt":"2018-10-22T11:00:25","slug":"ncert-solutions-class-12-physics-nuceli-part-2","status":"publish","type":"post","link":"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-12-physics-nuceli-part-2\/","title":{"rendered":"NCERT Solutions class 12 physics Nuclei Part 2"},"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\/ncert-solutions-class-12-physics-nuceli-part-2\/#NCERT_Class_12_Physics_Chapter-wise_Solutions\" >NCERT Class 12 Physics Chapter-wise Solutions<\/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\/ncert-solutions-class-12-physics-nuceli-part-2\/#CHAPTER_13_NUCLEI\" >CHAPTER 13 NUCLEI<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-12-physics-nuceli-part-2\/#NCERT_Solutions_class-12_physics_Nuclei_Part-2\" >NCERT Solutions class-12 physics Nuclei Part-2<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-12-physics-nuceli-part-2\/#28_Consider_the_D_%E2%80%93_T_reaction_deuterium_%E2%80%93_tritium_fusion\" >28:\u00a0 Consider the D &#8211; T reaction (deuterium &#8211; tritium fusion)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-12-physics-nuceli-part-2\/#NCERT_Solutions_for_Class_12_Physics\" >NCERT Solutions for Class 12 Physics<\/a><\/li><\/ul><\/nav><\/div>\n<p>NCERT Solutions class 12 physics Nuclei Part 2 Class 12 Physics book solutions are available in PDF format for free download. These ncert book chapter wise questions and answers are very helpful for CBSE board exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT text books. Class 12 Physics chapter wise NCERT solution for Physics part 1 and Physics part 2 for all the chapters can be downloaded from our website and myCBSEguide mobile app for<\/p>\n<p style=\"text-align: center;\">free. <strong>Download\u00a0<a href=\"https:\/\/mycbseguide.com\/downloads\/cbse-class-12-physics\/1251\/ncert-solutions\/5\/\">NCERT solutions for\u00a0Nuclei Part 2\u00a0<\/a>as PDF.<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright\" style=\"height: 161px; width: 131px;\" src=\"https:\/\/media-mycbseguide.s3.ap-south-1.amazonaws.com\/images\/blog\/Class%2012%20physics%20book%2012.jpg\" alt=\"NCERT Solutions class 12 physics Nuclei Part 2\" width=\"338\" height=\"413\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Class_12_Physics_Chapter-wise_Solutions\"><\/span><strong>NCERT Class 12 Physics Chapter-wise Solutions<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>1 \u2013 Electric Charges and Fields<\/li>\n<li>2 \u2013 Electrostatic Potential and Capacitance<\/li>\n<li>3 \u2013 Current Electricity<\/li>\n<li>4 \u2013 Moving Charges and Magnetism<\/li>\n<li>5 \u2013 Magnetism and Matter<\/li>\n<li>6 \u2013 Electromagnetic Induction<\/li>\n<li>7 \u2013 Alternating Current<\/li>\n<li>8 \u2013 Electromagnetic Waves<\/li>\n<li>9 \u2013 Ray Optics and Optical Instruments<\/li>\n<li>10 \u2013 Wave Optics<\/li>\n<li>11 \u2013 Dual Nature of Radiation and Matter<\/li>\n<li>12 \u2013 Atoms<\/li>\n<li>13 \u2013 Nuclei<\/li>\n<li>14 \u2013 Semiconductor Electronic: Material, Devices and Simple Circuits<\/li>\n<li>15 \u2013 Communication Systems<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"CHAPTER_13_NUCLEI\"><\/span>CHAPTER 13 NUCLEI<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>13.1 Introduction<\/li>\n<li>13.2 Atomic Masses and Composition of Nucleus<\/li>\n<li>13.3 Size of the Nucleus<\/li>\n<li>13.5 Nuclear Force<\/li>\n<li>13.6 Radioactivity<\/li>\n<li>13.7 Nuclear Energy<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Solutions_class-12_physics_Nuclei_Part-2\"><\/span>NCERT Solutions class-12 physics Nuclei Part-2<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">16:\u00a0 Suppose, we think of fission of a <img decoding=\"async\" style=\"height: 25px; width: 33px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image042.png\" \/>\u00a0nucleus into two equal fragments,<img decoding=\"async\" style=\"height: 25px; width: 32px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image228.png\" \/>. Is the fission energetically possible? Argue by working out <em>Q<\/em> of the process. Given <img decoding=\"async\" style=\"height: 30px; width: 146px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image229.png\" \/>\u00a0and<img decoding=\"async\" style=\"height: 30px; width: 145px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image230.png\" \/>\u00a0.<\/p>\n<p style=\"text-align: justify;\">17:\u00a0The fission properties of <img decoding=\"async\" style=\"height: 25px; width: 38px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image240.png\" \/>\u00a0are very similar to those of<img decoding=\"async\" style=\"height: 25px; width: 32px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image241.png\" \/>\u00a0.<\/p>\n<p style=\"text-align: justify;\">The average energy released per fission is 180 MeV. How much energy, in MeV, is released if all the atoms in 1 kg of pure <img decoding=\"async\" style=\"height: 25px; width: 38px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image242.png\" \/>undergo fission?<\/p>\n<p style=\"text-align: justify;\">\u00a018:\u00a0 A 1000 MW fission reactor consumes half of its fuel in 5.00 y. How much <img decoding=\"async\" style=\"height: 25px; width: 32px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image241.png\" \/>did it contain initially? Assume that the reactor operates 80% of the time, that all the energy generated arises from the fission of <img decoding=\"async\" style=\"height: 25px; width: 32px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image241.png\" \/>\u00a0and that this nuclide is consumed only by the fission process.<\/p>\n<p style=\"text-align: justify;\">19:\u00a0 How long can an electric lamp of 100W be kept glowing by fusion of 2.0 kg of deuterium? Take the fusion reaction as <img decoding=\"async\" style=\"height: 25px; width: 205px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image261.png\" \/><\/p>\n<p style=\"text-align: justify;\">\u00a020:\u00a0 Calculate the height of the potential barrier for a head on collision of two deuterons. (Hint: The height of the potential barrier is given by the Coulomb repulsion between the two deuterons when they just touch each other. Assume that they can be taken as hard spheres of radius 2.0 fm.)<\/p>\n<p style=\"text-align: justify;\">\u00a021:\u00a0 From the relation<img decoding=\"async\" style=\"height: 25px; width: 71px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image278.png\" \/>\u00a0, where <em>R<\/em>0is a constant and <em>A<\/em> is the mass number of a nucleus, show that the nuclear matter density is nearly constant (i.e. independent of <em>A<\/em>).<\/p>\n<p style=\"text-align: justify;\">\u00a022:\u00a0 For the <img decoding=\"async\" style=\"height: 24px; width: 24px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image283.png\" \/>(positron) emission from a nucleus, there is another competing process known as electron capture (electron from an inner orbit, say, the K &#8211; shell, is captured by the nucleus and a neutrino is emitted). <img decoding=\"async\" style=\"height: 27px; width: 126px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image284.png\" \/>\u00a0Show that if <img decoding=\"async\" style=\"height: 24px; width: 24px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image283.png\" \/>emission is energetically allowed, electron capture is necessarily allowed but not vice &#8211; versa.<\/p>\n<p style=\"text-align: justify;\">23:\u00a0In a periodic table the average atomic mass of magnesium is given as 24.312 u. The average value is based on their relative natural abundance on earth. The three isotopes and their masses are <img decoding=\"async\" style=\"height: 25px; width: 38px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image301.png\" \/>\u00a0(23.98504u), <img decoding=\"async\" style=\"height: 25px; width: 38px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image302.png\" \/>\u00a0(24.98584u) and <img decoding=\"async\" style=\"height: 25px; width: 38px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image303.png\" \/>\u00a0(25.98259u). The natural abundance of <img decoding=\"async\" style=\"height: 25px; width: 38px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image301.png\" \/>\u00a0is 78.99% by mass. Calculate the abundances of other two isotopes.<\/p>\n<p style=\"text-align: justify;\">24:\u00a0 The neutron separation energy is defined as the energy required to remove a neutron from the nucleus. Obtain the neutron separation energies of the nuclei <img decoding=\"async\" style=\"height: 25px; width: 36px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image313.png\" \/>\u00a0and <img decoding=\"async\" style=\"height: 25px; width: 32px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image314.png\" \/>\u00a0from the following data:<\/p>\n<p style=\"text-align: justify;\"><strong><img decoding=\"async\" style=\"height: 30px; width: 63px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image315.png\" \/>\u00a0= 39.962591 u <\/strong><\/p>\n<p style=\"text-align: justify;\"><strong><img decoding=\"async\" style=\"height: 30px; width: 63px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image316.png\" \/>\u00a0= 40.962278 u <\/strong><\/p>\n<p style=\"text-align: justify;\"><strong><img decoding=\"async\" style=\"height: 30px; width: 58px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image317.png\" \/>\u00a0= 25.986895 u <\/strong><\/p>\n<p style=\"text-align: justify;\"><strong><img decoding=\"async\" style=\"height: 30px; width: 58px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image318.png\" \/>\u00a0\u00a0= 26.981541 u <\/strong><\/p>\n<p style=\"text-align: justify;\">25:\u00a0 A source contains two phosphorous radio nuclides <img decoding=\"async\" style=\"height: 25px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image338.png\" \/>\u00a0<img decoding=\"async\" style=\"height: 24px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image339.png\" \/>\u00a0=14.3d) and <img decoding=\"async\" style=\"height: 25px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image338.png\" \/>\u00a0<img decoding=\"async\" style=\"height: 24px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image339.png\" \/>= 25.3d). Initially, 10% of the decays come from<img decoding=\"async\" style=\"height: 25px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image340.png\" \/>. How long one must wait until 90% do so?<\/p>\n<p style=\"text-align: justify;\">26:\u00a0 Under certain circumstances, a nucleus can decay by emitting a particle more massive than an \u03b1-particle. Consider the following decay processes: <img decoding=\"async\" style=\"height: 25px; width: 132px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image355.png\" \/><\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 25px; width: 136px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image356.png\" \/>\u00a0Calculate the <em>Q<\/em>-values for these decays and determine that both are energetically allowed.<\/p>\n<p style=\"text-align: justify;\">27:\u00a0 Consider the fission of <img decoding=\"async\" style=\"height: 25px; width: 32px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image369.png\" \/>\u00a0by fast neutrons. In one fission event, no neutrons are emitted and the final end products, after the beta decay of the primary fragments, are <img decoding=\"async\" style=\"height: 25px; width: 36px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image370.png\" \/>\u00a0and<img decoding=\"async\" style=\"height: 25px; width: 36px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image371.png\" \/>\u00a0. Calculate Q for this fission process.<\/p>\n<p style=\"text-align: justify;\">The relevant atomic and particle masses are<\/p>\n<p style=\"text-align: justify;\"><em>m<\/em><img decoding=\"async\" style=\"height: 30px; width: 45px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image372.png\" \/>\u00a0\u00a0=238.05079 u<\/p>\n<p style=\"text-align: justify;\"><em>m<\/em><img decoding=\"async\" style=\"height: 30px; width: 50px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image373.png\" \/>\u00a0\u00a0=139.90543 u<\/p>\n<p style=\"text-align: justify;\"><em>m<\/em><img decoding=\"async\" style=\"height: 30px; width: 50px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image374.png\" \/>\u00a0\u00a0= 98.90594 u<\/p>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"28_Consider_the_D_%E2%80%93_T_reaction_deuterium_%E2%80%93_tritium_fusion\"><\/span>28:\u00a0 Consider the D &#8211; T reaction (deuterium &#8211; tritium fusion)<img decoding=\"async\" style=\"height: 25px; width: 131px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image396.png\" \/><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">(a) Calculate the energy released in MeV in this reaction from the data:<\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 30px; width: 52px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image397.png\" \/>\u00a0= 2.014102 u<\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 30px; width: 52px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image398.png\" \/>\u00a0= 3.016049 u<\/p>\n<p style=\"text-align: justify;\">(b)Consider the radius of both deuterium and tritium to be approximately 2.0 fm. What is the kinetic energy needed to overcome the coulomb repulsion between the two nuclei? To what temperature must the gas be heated to initiate the reaction? (Hint: Kinetic energy required for one fusion event =average thermal kinetic energy available with the interacting particles = 2(3<em>kT<\/em>\/2); <em>k<\/em> = Boltzman&#8217;s constant, <em>T<\/em> = absolute temperature.)<\/p>\n<p style=\"text-align: justify;\">29:\u00a0 Calculate and compare the energy released by a) fusion of 1.0 kg of hydrogen deep within Sun and b) the fission of 1.0 kg of <img decoding=\"async\" style=\"height: 21px; width: 33px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image419.png\" \/>\u00a0\u00a0in a fission reactor.<\/p>\n<p style=\"text-align: justify;\">30:\u00a0 Suppose India had a target of producing by 2020 AD, 200,000 MW of electric power, ten percent of which was to be obtained from nuclear power plants. Suppose we are given that, on an average, the efficiency of utilization (i.e. conversion to electric energy) of thermal energy produced in a reactor was 25%. How much amount of fissionable uranium would our country need per year by 2020? Take the heat energy per fission of <img decoding=\"async\" style=\"height: 21px; width: 33px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image419.png\" \/>\u00a0to be about 200MeV.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Solutions_for_Class_12_Physics\"><\/span><strong>NCERT Solutions for Class 12 Physics<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>NCERT Solutions Class 12 Physics PDF (Download) Free from myCBSEguide app and myCBSEguide website. Ncert solution class 12 physics includes text book solutions from both part 1 and part 2. NCERT Solutions for CBSE Class 12 Physics have total 20 chapters. 12 Physics NCERT Solutions in PDF for free Download on our website. Ncert physics class 12 solutions PDF and physics ncert class 12 PDF solutions with latest modifications and as per the latest CBSE syllabus are only available in myCBSEguide To download\u00a0NCERT Solutions for class 12 Physics, Chemistry, Biology, 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>NCERT Solutions class 12 physics Nuclei Part 2 Class 12 Physics book solutions are available in PDF format for free download. These ncert book chapter wise questions and answers are very helpful for CBSE board exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT text books. Class &#8230; <a title=\"NCERT Solutions class 12 physics Nuclei Part 2\" class=\"read-more\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-12-physics-nuceli-part-2\/\" aria-label=\"More on NCERT Solutions class 12 physics Nuclei Part 2\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":-1,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[281,1433],"tags":[283,1342,216,319],"class_list":["post-4434","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ncert-solutions","category-physics-cbse-class-12","tag-cbse-study-material","tag-class-12","tag-ncert-solutions","tag-physics"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>NCERT Solutions class 12 physics Nuclei Part 2 | myCBSEguide<\/title>\n<meta name=\"description\" content=\"NCERT Solutions class 12 physics Nuclei Part 2 in PDF format for free download. 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