Gravitation Question 130

Question: A body of mass m is placed on the earth’s surface. It is taken from the earth’s surface to a height [h=3R] . The change in gravitational potential energy of the body is [CBSE PMT 2002]

Options:

A) [23mgR]

B) [34mgR]

C) [mgR2]

D) [mgR4]

Show Answer

Answer:

Correct Answer: B

Solution:

[ΔU=mgh1+hR=mg×3R1+3RR=34mgR]



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