PYQ Vault

Time period, length or g of a simple pendulum

This type of question, asked 4 times: 2021 Paper 3, 2021 Paper 13, 29 Jun 2022, 23 Jan 2026 S1. All 4 questions below, oldest first.

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  1. Question 1

    2021 Paper 3

    15
    If the time period of a two meter long simple pendulum is 2 s2\text{ }s, the acceleration due to gravity at the place where pendulum is executing S.H.M. is:

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  2. Question 2

    2021 Paper 13

    18
    A pendulum has time period of small oscillations as T. What will be the new time period by length of pendulum is reduced to 116th \frac{1}{16}^{\text{th~}} of its initial value?

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  3. Question 3

    29 Jun 2022

    102
    The motion of a simple pendulum excuting S.H.M. is represented by following equation. Y=Asin(πt+ϕ)Y = Asin(\pi t + \phi), where time is measured in second. The length of pendulum is:

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  4. Question 4

    23 Jan 2026 S1

    6
    A simple pendulum of string length 30 cm performs 20 oscillations in 10s. The length of the string required for the pendulum to perform 40 oscillations in the same time duration is ____\_\_\_\_ cm. [Assume that the mass of the pendulum remains same.]

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