NEET Physics · Hard

System of Particles & Rotational Motion: Angular Momentum MCQ

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

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Angular MomentumHardQuestion 6173

Question

Earth's rotation slows down due to tidal friction. Its angular momentum:
  1. A
    Increases
  2. B
    Stays constant
  3. C
    Decreases
    Correct
  4. D
    Oscillates

Correct answer

Decreases

Explanation

Tidal friction is a torque (external). It reduces angular momentum. L decreases.