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JEE PHYSICS MCQ: GRAVITATION

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An object is allowed to fall from a height

R

above the earth, where

\mathrm{R}

is the radius of earth. Its velocity when it strikes the earth's surface, ignoring air resistance, will be

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Correct option: C

\sqrt{g R}

Option C (

\sqrt{g R}

) is correct because the velocity is derived from the conservation of energy, considering the change in gravitational potential energy.

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