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NEET Physics · Medium

Gravitation: Gravitation Mixed MCQ

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Gravitation MixedMediumQuestion 6277

Question

If Earth's radius decreases by 1% (mass constant), g changes by:
  1. A
    +1%
  2. B
    +2%
    Correct
  3. C
    −2%
  4. D
    −1%

Correct answer

+2%

Explanation

g = GM/R². If R decreases by 1%: Δg/g = −2ΔR/R = +2% (g increases by 2%).

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