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Preboard Examination Class:XII PHYSICS (Three hours) Maximum Marks:70 This paper is divided into four Sections A, B, C and D. Answer all questions. Section A consists of one question having sub-parts of one mark each. Section B consists of seven questions of two marks each. Section C consists of nine questions of three marks each, and Section D consists of three questions of five marks each. Internal choices have been provided in two questions each in Section B,Section C and Section D. The intended marks for questions are given in brackets [ ]. Section A (Compulsory) (A)Answer all questions in this part (7 1 = 7) Question 1 (a) The spatial distribution of the electric field due to two charges (A, B) is shown in figure. Which one of the following statements is correct? A. B. C. D. A is +ve and B is -Ve and |A| > |B| A is -ve and B is +Ve and |A| = |B| Both are positive but A > B Both are negative but A > B. (b) The electrostatic potential energy of two point charges 1 C each, placed 1 m apart in air is: A. 9 103 J B. 9 109 J C. 9 10 3 J D. 9 10 3 eV
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