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NEET Physics · Hard

Gravitation: Escape Velocity MCQ

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Escape VelocityHardQuestion 6230

Question

If mass of planet doubles and radius doubles, escape velocity:
  1. A
    Same
    Correct
  2. B
    √2 times
  3. C
    2 times
  4. D
    Half

Correct answer

Same

Explanation

v_e = √(2GM/R). M→2M, R→2R: v_e = √(2G×2M/2R) = √(2GM/R) = same.

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