Gravitation Question 242

Question: The orbital velocity of an artificial satellite in a circular orbit just above the earth’s surface is v. For a satellite orbiting at an altitude of half of the earth’s radius, the orbital velocity is [MNR 1994]

Options:

A) [32v]

B) [32,v]

C) [23,v]

D) [23,v]

Show Answer

Answer:

Correct Answer: C

Solution:

[v=GMR+h] For first satellite [h=0] , [v1=GMR] For second satellite [h=R2] , [v2=2GM3R] [v2=23v1=23v]



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