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NEET UG PHYSICS MCQ: WORK-ENERGY-POWER

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A can filled with water is revolved in a vertical circle of radius 4 m and the water does not fall down. The time period of  revaluation will be

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Correct option: B

4 s

Option B (4 s) is correct because the minimum speed at the top of the circle is

\sqrt{gr}

, and the time period is related to this speed and the radius.

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