Gravitation Question 210

Question: Two satellite are revolving around the earth with velocities $ [v_{1}] $ and $ [v_{2}] $ and in radii $ [r_{1}] $ and $ [r_{2}(r_{1}>r_{2})] $ respectively. Then [BHU 2005]

Options:

A) $ [v_{1}=v_{2}] $

B) $ [v_{1}>v_{2}] $

C) $ [v_{1}<v_{2}] $

D) $ [\frac{v_{1}}{r_{1}}=\frac{v_{2}}{r_{2}}] $

Show Answer

Answer:

Correct Answer: C

Solution:

$ [v=\sqrt{\frac{GM}{R}}] $

if $ [r_{1}>r_{2}] $ then $ [v_{1}<v_{2}] $



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