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A body of mass m is taken from the Earth...

A body of mass m is taken from the Earth's surface to a height equal to the radius R of the earth. If g is the acceleration to gravity at the surface of the Earth, then find the change in the potential energy of the body` .......`

A

`1/4mgR`

B

`1/2`mgR

C

mgR

D

2mgR

Text Solution

Verified by Experts

The correct Answer is:
B
Change in P.E `= (-GMm)/(R+R) -(-(GMm)/R)=(GMm)/(2R) = 1/2 mgR`
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