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Simple Harmonic Motion: Torsional Pendulum MCQ

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Torsional PendulumMediumQuestion 31147

Question

A torsional pendulum has time period T = 2π√(I/C) where C is:
  1. A
    Spring constant
  2. B
    Torsional rigidity constant (restoring torque per unit angle)
    Correct
  3. C
    Moment of inertia
  4. D
    Angular velocity

Correct answer

Torsional rigidity constant (restoring torque per unit angle)

Explanation

Torsional pendulum: τ = −Cθ. C = torsional constant (N·m/rad). T = 2π√(I/C) analogous to mass-spring T = 2π√(m/k).

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