Satyam Gopal (anonymous) doubts approved

The change in potential energy, when a body of mass ‘m’ is raised to a height ‘nR’ from the earth’s surface is (R = radius of earth )

Options are :-
A) mgR × n/n-1
B) nmgR
C) mgr × n^2/n^2+1
D) mgr × n/n+1 .

Thank You.