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A body attains a height equal to the rad...

A body attains a height equal to the radius of the earth when projected from earth's surface the velocity of body with which it was projected is

A

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

B

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

C

`sqrt((5)/(4)(GM)/(R))`

D

`sqrt((3GM)/(R))`

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The correct Answer is:
A
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