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JEE Main 2026 (22 Jan, Shift 2) · Simple Pendulum

Simple Pendulum question from JEE Main 2026 (22 Jan, Shift 2)

Q6JEE Main 2026 · 22 JAN · SHIFT 2Easy

Simple Pendulum

Using a simple pendulum experiment gg is determind by measuring its time period TT. Which of the following plots represent the correct relation between the pendulum length LL and time period TT?

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Answer: (a)

  1. T=2πLg⇒1T2=g4π2⋅1LT = 2\pi\sqrt{\frac{L}{g}} \Rightarrow \frac{1}{T^2} = \frac{g}{4\pi^2}\cdot\frac{1}{L}
  2. So 1T2∝1L\frac{1}{T^2} \propto \frac{1}{L}: a rectangular hyperbola, falling steeply and flattening out as LL grows.
  3. So the answer is (a).
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