Gravitation Question 24

Question: The depth d at which the value of acceleration due to gravity becomes [1n] times the value at the surface, is [R = radius of the earth][MP PMT 1999; Kerala PMT 2005]

Options:

A) [Rn]

B) [R,(n−1n)]

C) [Rn2]

D) [R,(nn+1)]

Show Answer

Answer:

Correct Answer: B

Solution:

[g′=g(1−dR),⇒,gn=g(1−dR)]

[⇒,,d=(n−1n) R]

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