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If g be the acceleration due to gravity ...

If g be the acceleration due to gravity of the earth's surface, the gain is the potential energy of an object of mass m raised from the surface of the earth to a height equal to the radius R of the earth is

A

2m gR

B

`1/2m gR`

C

`1/4 m gR`

D

mgR

Text Solution

Verified by Experts

The correct Answer is:
B
`DeltaU=(mgh)/(1+h/R)=1/2mgR(because h=R)`
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