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Physics · Simple Harmonic Motion

JEE Main 2026 — 22 January, Evening Shift — Question 27

Using a simple pendulum experiment g is determined by measuring its time period T. Which of the following plots represent the correct relation between the pendulum length L and time period T?

  1. Option A:
    Option A figure
  2. Option B:
    Option B figure
    Correct
  3. Option C:
    Option C figure
  4. Option D:
    Option D figure

Answer: B

Step-by-step solution

T=2πℓ g T2=4π2ℓ g\mathrm{T}=2 \pi \sqrt{\frac{\ell}{\mathrm{~g}}} \mathrm{~T}^{2}=\frac{4 \pi^{2} \ell}{\mathrm{~g}} 1 T2=g4π2ℓ\frac{1}{\mathrm{~T}^{2}}=\frac{\mathrm{g}}{4 \pi^{2} \ell}

Answer key and solution verified before publishing.

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Exam
JEE Main 2026
Paper
22 January, Evening Shift
Subject
Physics
Chapter
Simple Harmonic Motion
Topic
Simple Pendulum and Angular SHM
Using a simple pendulum experiment g is determined by measuring its… | JEE Main 2026 PYQ with Solution · DhiX AI