The radius of a planet is double that of the earth but their average densities are the same. If the escape velocities at the planet and at the earth are 
and 
respectively, then 
is equal to.
A
B
C
D
None of these
Text Solution
Verified by ExpertsThe correct answer is:
B
If 
is the average density of the earth, then mass of the the earth,
Escape velocity on the earth,
Similarly, escape velocity on the planet,
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