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CMC Medical CMC-Medical Ludhiana Solved Paper-2007

  • question_answer
    The work done by the string of a simple pendulum during one complete oscillation is equal co

    A)  total energy of the pendulum

    B)  kinetic energy of the pendulum

    C)  potential energy of the pendulum

    D)  zero

    Correct Answer: D

    Solution :

                     When a bob oscillates, the restoring force\[mg\sin \theta \] is always perpendicular to the length of string. So, work done by string in one complete oscillation is zero.


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