NEET UG PHYSICS MCQ: SYSTEM OF PARTICLES

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A stone is swinging in a horizontal circle 0.8 m in diameter, at 30rev/min. A distant light causes a shadow of the stone to be formed on a nearby wall. What is the amplitude of the motion of the shadow? What is the frequency?

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Correct option: B

0.4 m, 0.5 Hz

Option B (0.4 m, 0.5 Hz) is correct because the amplitude is half the diameter and the frequency is the revolutions per second.

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