Gravitation Question 113

Question: A body of mass m is taken from earth surface to the height h equal to radius of earth, the increase in potential energy will be [NCERT 1971; CPMT 1971, 97; IIT 1983; CBSE PMT 1991; Kurukshetra CEE 1996;CMEET Bihar 1995; MNR 1998; AIEEE 2004]

Options:

A) mgR

B) [12mgR]

C) 2 mgR

D)[14mgR]

Show Answer

Answer:

Correct Answer: B

Solution:

[ΔU=mgh1+hR=12mgR,,(,,,h=R)]



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