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NEET UG PHYSICS MCQ: SYSTEM OF PARTICLES

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Density remains constant, if earth contracts to one fourth of its present radius, duration of the day would be [in minutes]

View answer and explanation

Correct option: A

\frac{{45}}{{32}}

min

Option A (

\frac{{45}}{{32}}

min) is correct because the duration of the day is inversely proportional to the square of the radius when density is constant.

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