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ICSE Class X Prelims 2023 : Physics (Loyola School, Bhubaneswar)

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Indian Certificate of Secondary Education (ICSE), New Delhi
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LOYOLA SCHOOL, BHUBANESWAR PRE BOARD ICSE EXAMINATION JANUARY, 2023 PHYSICS ________________________________________________________________________________________________________ Maximum Marks: 80 Time allowed: Two hours Answer to this paper must be written on the paper provided separately. You will not be allowed to write during the first 15 minutes. This time is to be spent in reading the question paper. The time given at the head of this paper is the time allowed for writing the answers. -------------------------------------------------------------------------------------------------------------------------------------------------------Section A is compulsory. Attempt any four questions from Section B The intended marks for questions or parts of questions are given in brackets [ ]. --------------------------------------------------------------------------------------------------------------------------------------- ------ SECTION A (40 Marks) (Choose the correct answer) QUESTION -1 (i) (ii) (iii) [1X15] In which vibrations is the amplitude large? (a) forced vibrations (b) resonant vibrations (c) natural vibrations (d) free vibrations A wire is stretched to thrice its original length, its new resistance now is (a) one third (b) three times (c) one ninth (d) nine times Identify the circuit in which the electrical components have been properly connected (a) (iv) (b) (d) Inside a current carrying solenoid the magnetic lines of force are (a) circular and do not intersect (b) along the axis of the solenoid and parallel to each other (c) perpendicular to the axis of the solenoid (v) (c) (d) none of these The pitch of a sound depends on (a) frequency (b) distance of sound (c) amplitude (d) temperature

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