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Punjab Medical Punjab - MET Solved Paper-2001

  • question_answer
    When a mass \[m\] is attached to a spring, it normally extends by\[0.2\,\,m\]. The mass m is given a slight addition extension and released, then its time period will be

    A)  \[\frac{1}{7}\]second                   

    B)  second

    C) \[\frac{2\pi }{7}\]second                             

    D) \[\frac{2}{3\pi }\]second

    Correct Answer: C

    Solution :

    Using the relation                 \[T=2\pi \sqrt{\frac{l}{g}}\] (given\[l=0.2\,\,m,\,\,g=9.8\,\,m/{{s}^{2}}\]) or            \[T=2\pi \sqrt{\frac{0.2}{9.8}}=\frac{2\pi }{7}\sec \]


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