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NEET Physics · Medium

Gravitation: Escape Velocity MCQ

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Escape VelocityMediumQuestion 6247

Question

Moon has no atmosphere because:
  1. A
    No water
  2. B
    Escape velocity is low (≈2.4 km/s)
    Correct
  3. C
    Too far from Sun
  4. D
    No magnetic field

Correct answer

Escape velocity is low (≈2.4 km/s)

Explanation

Moon's escape velocity ≈ 2.4 km/s — less than typical gas molecule speeds. Atmosphere escapes. Low escape velocity.

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