Questions
A body of mass m is placed on earth surface which is taken from earth surface to a height of h = 3R, then change in gravitational potential energy is :
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a
mgR4
b
2mgR3
c
3mgR4
d
mgR2
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Correct option is C
change in gravitational PE =−GMm4R−−GMmR=34GMmR=34mgRSimilar Questions
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