JEE Main & Advanced Physics Simple Harmonic Motion Question Bank Simple Pendulum

  • question_answer
    A simple pendulum hangs from the ceiling of a car. If the car accelerates with a uniform acceleration, the frequency of the simple pendulum will                                 [Pb. PMT 2000]

    A)            Increase                                 

    B)            Decrease

    C)            Become infinite                  

    D)            Remain constant

    Correct Answer: A

    Solution :

               In this case frequency of oscillation is given by \[n=\frac{1}{2\pi }\sqrt{\frac{\sqrt{{{g}^{2}}+{{a}^{2}}}}{l}}\]where a is the acceleration of car. If a increases then n also increases.


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