Gravitation Question 9

Question: A spherical planet far out in space has a mass [M0] and diameter [D0] . A particle of mass m falling freely near the surface of this planet will experience an acceleration due to gravity which is equal to[MP PMT 1987; DPMT 2002]

Options:

A) [GM0/D02]

B) [4mGM0/D02]

C) [4GM0/D02]

D)[GmM0/D02]

Show Answer

Answer:

Correct Answer: C

Solution:

[g=GMR2=GM0(D0/2)2=4GM0D02]

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