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A body of mass m is taken from earth sur...

A body of mass m is taken from earth surface to the height h equal to radius of earth, the increase in potential energy will be

A

`mgR`

B

`1/2mgR`

C

`2mgR`

D

`1/4mgR`

Text Solution

Verified by Experts

The correct Answer is:
B
`DeltaU=U,-U`
`=(-GMm)/(2R)-(-(GMm)/R)=(GMm)/(2R)=1/2mgR`
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