Assuming that the gravitational potential energy of an object at infinity is zero, the change in potential energy (final-initial) of an object of mass m, when taken to a height h from the surface of earth (of radius R), is given by,
1
mgh
2
\(\frac{GMm}{R+h}\)
3
\(−\frac{GMm}{R+h}\)
4
\(\frac{GMmh}{R(R+h)}\)