MCQ
The angular momentum of a system of particles is not conserved when:
  • A
    Net external force acts on the system.
  • Net external torque acts on the system.
  • C
    Net external impulse acts on the system.
  • D
    None of the above.

Answer

Correct option: B.
Net external torque acts on the system.
As $\omega=\frac{2\pi}{\text{T}}$ and time period $T$ for both the particles is same, therefore, their angular velocity must be the same.

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