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  3. JAMIA MILLIA ISLAMIA

JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2005

  • question_answer
        A child swinging on a swing in sitting position, stands up, then the time period of the swing will:

    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 girl stands up, the effective length of pendulum decreases due to the reason that the centre of gravity rises up so, according to\[T=2\pi \sqrt{l/g}\]Twill decrease.


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