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Question 30706
JEE Physics · Medium

Gravitation: Gravitational PE MCQ

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Gravitational PEMediumQuestion 30706

Question

Gravitational potential energy of mass m at distance r from Earth (mass M) is:
  1. A
    mgh
  2. B
    −GMm/r
    Correct
  3. C
    GMm/r
  4. D
    −GMm/r²

Correct answer

−GMm/r

Explanation

U = mV = −GMm/r. This is the exact expression; mgh is an approximation valid near Earth's surface where h << R.

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