Gravitation Question 177

Question: There are two planets. The ratio of radius of the two planets is K but ratio of acceleration due to gravity of both planets is g. What will be the ratio of their escape velocity[BHU 2005]

Options:

A) [(Kg)1/2]

B) [(Kg)1/2]

C) [(Kg)2]

D) [(Kg)2]

Show Answer

Answer:

Correct Answer: A

Solution:

[v=2gR] [v1v2=g1g2×R1R2=g×K] = [(Kg)1/2]



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