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

  • question_answer
    If the tension on a wire is removed at once, then

    A) It will break

    B)                             Its temperature will reduce

    C)                 There will be no change in its temperature

    D)                 Its temperature increases

    Correct Answer: D

    Solution :

    Due to tension, intermolecular distance between atoms is increased and therefore potential energy of the wire is increased and with the removal of force interatomic distance is reduced and so is the potential energy. This change in potential energy appears as heat in the wire and thereby increases the temperature.


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