A small mass m is moved slowly from the surface of the earth to a height h above the surface. The work done (by an external agent) in doing this is
A
mgh, for all values of h
B
mgh, for h << R
C
mgR, for h = R
D
- 
mgR, for h = R
mgR, for h = R
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(b, c)
Work = m × difference in gravitational potential.
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