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NEET 2012 (AIPMT, Prelims) · Acceleration Due to Gravity

Acceleration Due to Gravity question from NEET 2012 (AIPMT, Prelims)

Q120NEET 2012 · AIPMT · PRELIMSEasy

Acceleration Due to Gravity

A spherical planet has a mass MP and diameter DP. A particle of mass m falling freely near the surface of this planet will experience an acceleration due to gravity, equal to

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Answer: (a)

Radius $R = \frac{D_P}{2}$ ; acceleration does not depend on $m$ .
$g = \frac{GM_P}{(D_P/2)^2} = \frac{4GM_P}{D_P^2}$
So the answer is (a).

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