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    Question

    The time period of a second’s pendulum is –

    A 1 second Correct Answer Incorrect Answer
    B 2 seconds Correct Answer Incorrect Answer
    C 0.5 second Correct Answer Incorrect Answer
    D 1.5 seconds Correct Answer Incorrect Answer

    Solution

    A seconds pendulum is a pendulum whose period is precisely two seconds; one second for a swing in one direction and one second for the return swing, a frequency of 1/2 Hz. At standard gravity its length is 0.994 m.

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