question_answer

A body of mass m taken from the earth's surface to the height equal to twice the radius (R) of the earth. The change is potential energy of body will be                                           [NEET 2013]

A) \[mg2R\]

B) \[\frac{2}{3}mgR\]

C) \[3\,mgR\]

D) \[\frac{1}{3}mgR\]

Correct Answer: B

Solution :

Change in potential energy