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JEE Main & Advanced Physics Elasticity Question Bank Work Done in Stretching a Wire

  • question_answer
    In the above question, the ratio of the increase in energy of the wire to the decrease in gravitational potential energy when load moves downwards by 1 mm, will be

    A) 1             

    B)                 \[\frac{1}{4}\]

    C)                 \[\frac{1}{3}\]       

    D)                 \[\frac{1}{2}\]

    Correct Answer: D

    Solution :

     Ratio of work done = \[\frac{1/2Fl}{Fl}=\frac{1}{2}\]


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