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A body of mass m is lifted up from the s...

A body of mass `m` is lifted up from the surface of earth to a height three times the radius of the earth `R`. The change in potential energy of the body is

A

`2/3mgR`

B

`3/4mgR`

C

`(mgR)/2`

D

`(mgR)/4`

Text Solution

Verified by Experts

The correct Answer is:
B
`DeltaU=(mgh)/(1+h/R)=(mgxx3R)/(1+(3R)/R)=3/4mgR`
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