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NEET Physics · Medium

Gravitation: Orbital Velocity MCQ

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Orbital VelocityMediumQuestion 6232

Question

For a satellite in circular orbit, orbital speed is _______ than escape velocity:
  1. A
    Equal to
  2. B
    Greater than
  3. C
    √2 times less than
    Correct
  4. D
    Half of

Correct answer

√2 times less than

Explanation

v_e = √(2GM/R) = √2 × v₀. So v₀ = v_e/√2 — orbital speed is √2 times less.

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