Gravitation Question 257

Question: Periodic time of a satellite revolving above Earth’s surface at a height equal to R, radius of Earth, is [g is acceleration due to gravity at Earth’s surface] [MP PMT 2002]

Options:

A) [2π2Rg]

B) [42πRg]

C) [2πRg]

D) [8πRg]

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Answer:

Correct Answer: B

Solution:

[T=2π(R+h)3gR2=2π(2R)3gR2=42πRg]



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