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JEE Main & Advanced AIEEE Solved Paper-2002

  • question_answer
    A child swinging on a swing in sitting position, stands up, then the time period of the swing will   AIEEE  Solved  Paper-2002

    A) increase                 

    B) decrease

    C) remain same

    D) increase if the child is long and decrease if the child is short

    Correct Answer: B

    Solution :

    As the child stands up, the effective length of pendulum decreases due to the reason that the centre of gravity rises up. Hence, For time period, \[T=2\pi \sqrt{\frac{l}{g}}\], T will decrease.


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