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A particle is kept at rest at a distance...

A particle is kept at rest at a distance R (earth's radius) above the earth's surface. The minimum speed with which it should be projected so that is does not return is

A

`sqrt((GM)/(4R))`

B

`sqrt((GM)/(2R))`

C

`sqrt((GM)/(R))`

D

`sqrt((2GM)/(R))`

Text Solution

Verified by Experts

The correct Answer is:
C
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