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MHT CET20243 May 2024Evening ShiftPhysicsOscillationsActual

The period of a simple pendulum gets doubled when

Options

  1. Aits length is doubled.
  2. Bits length is made four times.
  3. Cits length is made half.
  4. Dthe mass of the bob is doubled.

Correct answer

B. its length is made four times.

Step-by-step solution

We know for a simple pendulum, aligned & T =2 l ~g ~T l & ~T ₁ ~T ₂ = l₁ l₂ aligned When l₂=4 l₁ , T ₁ ~T ₂ = l₁ 4 l₁ ~T ₂=2 ~T ₁ Period is doubled when length is made four times aligned & T ₁ 2 ~T ₁ = l₁ l₂ & 1 2 = l₁ l₂ 1 4 = l₁ l₂ l₂=4 l₁ aligned Period is doubled when length is made four times

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