NEET UG PHYSICS MCQ: GRAVITATION

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A uniform spherical shell gradually shrinks maintaining its shape. The gravitational potential at the centre

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Correct option: A

increases

Option A (increases) is correct because as the shell shrinks, the gravitational potential becomes more negative, meaning it increases (becomes less negative).

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

\left( { - K/{r^2}} \right)

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F \propto \frac{1}{r^3}

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6\,m{s^{ - 1}}

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