JEE Physics · Hard

Simple Harmonic Motion: Compound Pendulum MCQ

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

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Compound PendulumHardQuestion 31178

Question

Reversible pendulum is used to measure g accurately because it has two pivots where:
  1. A
    T is maximum
  2. B
    T is minimum and same from both pivots
    Correct
  3. C
    Amplitude is constant
  4. D
    Damping is zero

Correct answer

T is minimum and same from both pivots

Explanation

Kater's reversible pendulum: adjusted so T is equal from both pivot points, which corresponds to the equivalent simple pendulum length L = distance between pivots. This gives accurate g measurement.