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Class 12 CBSE 12th Board 2018 : Physics sample paper

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Shriman Raghav
Hindu Colony Chellammal Vidyalaya, Chennai
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Sample Question Paper (PHYSICS) CLASS-XII (2017-18) Time Allowed: 3Hours Maximum Marks: 70 General Instructions 1. All questions are compulsory. There are 26 questions in all. 2. This question paper has five sections: Section A, Section B, Section C, Section D and Section E. 3. 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. 4. 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. 5. You may use the following values of physical constants wherever necessary. c = 3 X 108 m/s h = 6.63 X 10-34 Js e = 1.6 X 10-19 C o = 4 X 10-7 T m A-1 0 = 8.854 X 10-12 C2 N-1 m-2 = 9 X 109 N m2 C-2 me = 9.1 X 10-31 kg mass of neutron = 1.675 X 10-27 kg mass of proton = 1.673 X 10-27 kg Avogadro s number = 6.023 X 1023 per gram mole Boltzmann constant = 1.38 X 10-23 JK-1 1

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