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NEET UG PHYSICS MCQ: GRAVITATION

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The earth revolves around the sun in one year. If the distance between them becomes double, the new period of revolution will be

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Correct option: B

2\sqrt 2 \,\,years

Option B (

2\sqrt 2 \,years

) is correct because, according to Kepler's third law, the period is proportional to the distance raised to the power of 3/2.

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If a particle of mass m is moving in a horizontal circle of radius r with a centripetal force

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Statement-2: Because rotation of earth is about polar axis.