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Question 6244
NEET Physics · Hard

Gravitation: Gravitational PE MCQ

Solve this quality-checked NEET multiple-choice question, then review the correct answer and explanation.

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Gravitational PEHardQuestion 6244

Question

Energy required to move satellite from orbit r₁ to r₂ (r₂ > r₁):
  1. A
    GMm(1/r₁−1/r₂)/2
    Correct
  2. B
    GMm(1/r₁−1/r₂)
  3. C
    GMm(1/r₂−1/r₁)/2
  4. D
    0

Correct answer

GMm(1/r₁−1/r₂)/2

Explanation

ΔE = E₂−E₁ = −GMm/2r₂ − (−GMm/2r₁) = GMm(1/r₁−1/r₂)/2 = GMm(1/r₁−1/r₂)/2.

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