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ISC Class XII Board Exam 2019 : Physics

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Yuvraj Singh
Ingraham Institute English Medium School ICSE, Ghaziabad
vII-XII PCM
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PHYSICS PAPER _ 2 (PRACTICAL) (Muximum Marks:30) (Time allowed: Three hours) (Candidates are allowed additional I5 minutes for only reading the paper. They must NOT start writing during this time.) ALL ANSWERS MUST BE WRITTEN IN THE ANSWER BOOKLET PROVIDED SEPAR.ATELY. If squared paper is used, it must be attached to the answer booklet. Marks are given Jbr a clear record of observations actually made, for their suitability and accuracy, andfor the use made of them. Statement of the theory, procedure of the experiment, apparatus, circuit diagrams, precautions are not required to be written unless spectfically askedfor. Candidates are adviserl to record their observations as soon as they have been made. All working, inclutling rough work, should be done on the same sheet as, and adjacent to, the rest of the answer. Mathematical tables and squared paper are provided. The intended marks Jbr questions or parts of questions are gtven in brackets I J . Note: Procedure of the Expertment, rfly diagram, circuit diagram ond precautions ure not to be written in your snshter booklet. Answer a,ll questions. You should not spend more than one and a half hours on each question. Question I t9l This experiment determines the focal length of the given convex lens by no parallax method. You are provided with: (a) (b) (c) (d) Two optical pins A convex lens A lens holder An optical bench Note: If an optical bench is not available, the experiment may be performed on a table top, using a metre scale. This Paper consists of 4 printed pages. t2l9-8618 @ Copyright reserved. Turn over

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