{"id":4433,"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-1\/"},"modified":"2018-10-22T16:12:35","modified_gmt":"2018-10-22T10:42:35","slug":"ncert-solutions-class-12-physics-nuclei-part-1","status":"publish","type":"post","link":"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-12-physics-nuclei-part-1\/","title":{"rendered":"NCERT Solutions class 12 physics Nuclei Part 1"},"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-nuclei-part-1\/#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-nuclei-part-1\/#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-nuclei-part-1\/#NCERT_Solutions_class_12_physics_Nuclei_Part_1\" >NCERT Solutions class 12 physics Nuclei Part 1\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-12-physics-nuclei-part-1\/#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 1 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 free.<\/p>\n<p style=\"text-align: center;\"><strong>Download\u00a0<a href=\"https:\/\/mycbseguide.com\/downloads\/cbse-class-12-physics\/1251\/ncert-solutions\/5\/\">NCERT solutions for Nuclei Part 1\u00a0<\/a>as PDF.<\/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=\"NCERT Solutions class 12 physics Nuclei Part 1\" width=\"130\" height=\"160\" \/><\/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_1\"><\/span>NCERT Solutions class 12 physics Nuclei Part 1<strong>\u00a0<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">1:\u00a0(a) Two stable isotopes of lithium <img decoding=\"async\" style=\"height: 25px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image001.png\" \/>\u00a0and <img decoding=\"async\" style=\"height: 25px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image002.png\" \/>\u00a0have respective abundances of 7.5% and 92.5%. These isotopes have masses 6.01512 u and 7.01600 u, respectively. Find the atomic mass of lithium.<\/p>\n<p style=\"text-align: justify;\">(b) Boron has two stable isotopes, <img decoding=\"async\" style=\"height: 25px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image003.png\" \/>\u00a0and<img decoding=\"async\" style=\"height: 25px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image004.png\" \/>\u00a0. Their respective masses are 10.01294 u and 11.00931 u, and the atomic mass of boron is 10.811 u. Find the abundances of <img decoding=\"async\" style=\"height: 25px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image003.png\" \/>\u00a0and <img decoding=\"async\" style=\"height: 25px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image004.png\" \/>\u00a0.<\/p>\n<p style=\"text-align: justify;\">2:\u00a0The three stable isotopes of neon: <img decoding=\"async\" style=\"height: 25px; width: 71px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image020.png\" \/>\u00a0and <img decoding=\"async\" style=\"height: 25px; width: 33px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image021.png\" \/>\u00a0have respective abundances of 90.51%, 0.27% and 9.22%. The atomic masses of the three isotopes are 19.99 u, 20.99 u and 21.99 u, respectively. Obtain the average atomic mass of neon.<\/p>\n<p style=\"text-align: justify;\">3:\u00a0Obtain the binding energy (in MeV) of a nitrogen nucleus<img decoding=\"async\" style=\"height: 25px; width: 27px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image031.png\" \/>\u00a0, given <img decoding=\"async\" style=\"height: 30px; width: 56px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image032.png\" \/>\u00a0=14.00307 u<\/p>\n<p style=\"text-align: justify;\">4:\u00a0 Obtain the binding energy of the nuclei <img decoding=\"async\" style=\"height: 25px; width: 33px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image042.png\" \/>\u00a0and <img decoding=\"async\" style=\"height: 25px; width: 36px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image043.png\" \/>in units of MeV from the following data: <img decoding=\"async\" style=\"height: 30px; width: 60px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image044.png\" \/>\u00a0= 55.934939 u <img decoding=\"async\" style=\"height: 30px; width: 64px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image045.png\" \/>\u00a0= 208.980388 u<\/p>\n<p style=\"text-align: justify;\">5:\u00a0A given coin has a mass of 3.0 g. Calculate the nuclear energy that would be required to separate all the neutrons and protons from each other. For simplicity assume that the coin is entirely made of <img decoding=\"async\" style=\"height: 25px; width: 36px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image057.png\" \/>\u00a0atoms (of mass 62.92960 u).<\/p>\n<p style=\"text-align: justify;\">6: Write nuclear reaction equations for<\/p>\n<p style=\"text-align: justify;\">(i) <em>\u03b1<\/em>-decay of <img decoding=\"async\" style=\"height: 25px; width: 38px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image072.png\" \/><\/p>\n<p style=\"text-align: justify;\">(ii) <em>\u03b1<\/em>-decay of <img decoding=\"async\" style=\"height: 25px; width: 38px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image073.png\" \/><\/p>\n<p style=\"text-align: justify;\">(iii) <img decoding=\"async\" style=\"height: 26px; width: 145px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image074.png\" \/><\/p>\n<p style=\"text-align: justify;\">(iv) <img decoding=\"async\" style=\"height: 26px; width: 127px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image075.png\" \/><\/p>\n<p style=\"text-align: justify;\">(v) <img decoding=\"async\" style=\"height: 26px; width: 119px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image076.png\" \/><\/p>\n<p style=\"text-align: justify;\">(vi) <img decoding=\"async\" style=\"height: 26px; width: 123px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image077.png\" \/><\/p>\n<p style=\"text-align: justify;\">\u00a0(vii) Electron capture of <img decoding=\"async\" style=\"height: 25px; width: 36px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image078.png\" \/><\/p>\n<p>7:\u00a0A radioactive isotope has a half-life of <em>T<\/em> years. How long will it take the activity to reduce to a) 3.125%, b) 1% of its original value?<\/p>\n<p style=\"text-align: justify;\">8:\u00a0 The normal activity of living carbon-containing matter is found to be about 15 decays per minute for every gram of carbon. This activity arises from the small proportion of radioactive <img decoding=\"async\" style=\"height: 25px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image108.png\" \/>\u00a0present with the stable carbon isotope<img decoding=\"async\" style=\"height: 25px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image109.png\" \/>\u00a0. When the organism is dead, its interaction with the atmosphere (which maintains the above equilibrium activity) ceases and its activity begins to drop. From the known half-life (5730 years) of<img decoding=\"async\" style=\"height: 25px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image108.png\" \/>, and the measured activity, the age of the specimen can be approximately estimated. This is the principle of <img decoding=\"async\" style=\"height: 25px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image108.png\" \/>\u00a0dating used in archaeology. Suppose a specimen from Mohenjodaro gives an activity of 9 decays per minute per gram of carbon. Estimate the approximate age of the Indus-Valley civilisation.<\/p>\n<p style=\"text-align: justify;\">9:\u00a0 Obtain the amount of <img decoding=\"async\" style=\"height: 25px; width: 36px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image117.png\" \/>\u00a0necessary to provide a radioactive source of 8.0 mCi strength. The half-life of <img decoding=\"async\" style=\"height: 25px; width: 36px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image117.png\" \/>is 5.3 years.<\/p>\n<p>10:\u00a0 The half-life of <img decoding=\"async\" style=\"height: 25px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image133.png\" \/>is 28 years. What is the disintegration rate of 15 mg of this isotope?<\/p>\n<p style=\"text-align: justify;\">11:\u00a0 Obtain approximately the ratio of the nuclear radii of the gold isotope <img decoding=\"async\" style=\"height: 25px; width: 38px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image142.png\" \/>\u00a0and the silver isotope<img decoding=\"async\" style=\"height: 25px; width: 41px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image143.png\" \/>.<\/p>\n<p style=\"text-align: justify;\">12:\u00a0 Find the Q-value and the kinetic energy of the emitted <em>\u03b1<\/em>-particle in the \u03b1-decay of (a) <img decoding=\"async\" style=\"height: 25px; width: 38px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image072.png\" \/>\u00a0and (b)<img decoding=\"async\" style=\"height: 25px; width: 38px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image152.png\" \/>\u00a0. Given <img decoding=\"async\" style=\"height: 30px; width: 65px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image153.png\" \/>\u00a0= 226.02540 u, <img decoding=\"async\" style=\"height: 30px; width: 65px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image154.png\" \/>\u00a0= 222.01750 u,<\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 30px; width: 65px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image155.png\" \/>\u00a0= 220.01137 u, <img decoding=\"async\" style=\"height: 30px; width: 65px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image156.png\" \/>\u00a0= 216.00189 u.<\/p>\n<p style=\"text-align: justify;\">13:\u00a0 The radionuclide 11C decays according to <img decoding=\"async\" style=\"height: 27px; width: 217px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image174.png\" \/><\/p>\n<p style=\"text-align: justify;\">The maximum energy of the emitted positron is 0.960 MeV.<\/p>\n<p style=\"text-align: justify;\">Given the mass values:<img decoding=\"async\" style=\"height: 30px; width: 142px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image175.png\" \/>\u00a0and <img decoding=\"async\" style=\"height: 30px; width: 146px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image176.png\" \/>calculate <em>Q<\/em> and compare it with the maximum energy of the positron emitted<\/p>\n<p style=\"text-align: justify;\">14:\u00a0 The nucleus <img decoding=\"async\" style=\"height: 25px; width: 33px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image192.png\" \/>\u00a0decays by<img decoding=\"async\" style=\"height: 24px; width: 24px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image193.png\" \/>emission. Write down the<img decoding=\"async\" style=\"height: 21px; width: 15px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image080.png\" \/>\u00a0decay equation and determine the maximum kinetic energy of the electrons emitted. Given that:<\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 30px; width: 60px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image194.png\" \/>\u00a0= 22.994466 u<\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 30px; width: 60px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image195.png\" \/>\u00a0= 22.989770 u.<\/p>\n<p style=\"text-align: justify;\">15:\u00a0 The <em>Q<\/em> value of a nuclear reaction <img decoding=\"async\" style=\"height: 18px; width: 92px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image206.png\" \/>\u00a0is defined by<\/p>\n<p style=\"text-align: justify;\"><em>Q<\/em> = <img decoding=\"async\" style=\"height: 27px; width: 147px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image207.png\" \/>\u00a0where the masses refer to the respective nuclei. Determine from the given data the <em>Q<\/em>-value of the following reactions and state whether the reactions are exothermic or endothermic.<\/p>\n<p style=\"text-align: justify;\">(i) <img decoding=\"async\" style=\"height: 25px; width: 137px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image208.png\" \/><\/p>\n<p style=\"text-align: justify;\">(ii) <img decoding=\"async\" style=\"height: 25px; width: 155px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image209.png\" \/><\/p>\n<p style=\"text-align: justify;\">Atomic masses are given to be<\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 30px; width: 136px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image210.png\" \/><\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 30px; width: 136px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image211.png\" \/><\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 30px; width: 142px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image212.png\" \/><\/p>\n<p><img decoding=\"async\" style=\"height: 30px; width: 152px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/12\/physics\/ch13\/image213.png\" \/><\/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<\/p>\n<p>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<hr \/>\n","protected":false},"excerpt":{"rendered":"<p>NCERT Solutions class 12 physics Nuclei Part 1 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 1\" class=\"read-more\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-class-12-physics-nuclei-part-1\/\" aria-label=\"More on NCERT Solutions class 12 physics Nuclei Part 1\">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-4433","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 1 | myCBSEguide<\/title>\n<meta name=\"description\" content=\"NCERT Solutions class 12 physics Nuclei Part 1 in PDF format for free download. 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