Question
The motion of a torsional pendulum is:
  1. Periodic.
  2. Oscillatory.
  3. Simple harmonic.
  4. Angular simple harmonic.

Answer

  1. Periodic.
  1. Oscillatory.
  1. Angular simple harmonic.

Explanation:

Because it completes one oscillation in a fixed interval of time and the oscillations are in terms of rotation of the body through some angle.

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