Multiple Choice Questions on The time period of oscillation of a simple pendulum having length L and mass of the bob m is given a........... for NDA Exam Preparation

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Multiple Choice Questions

The time period of oscillation of a simple pendulum having length L and mass of the bob m is given a...........

General Science (NDA) Physics
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    The time period of oscillation of a simple pendulum having length L and mass of the bob m is given as T. If the length of the pendulum is increased to 4L and the mass of the bob is increased to 2m, then which one of the following is the new time period of oscillation?

    T 

    Incorrect Answer

    2T

    Correct Answer

    4T 

    Incorrect Answer

    T/2

    Incorrect Answer
    Explanation:

    Time period of a pendulum is given by T=2\pi\sqrt{l/g} If length is now 4l then the new time period T2 will be  T'=2\pi\sqrt{4l/g}=2T

    By: Munesh Kumari
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