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JEE Main & Advanced Physics Wave Mechanics Question Bank Self Evaluation Test - Mechanical Properties of Solids

  • question_answer
    A 2 m long rod of radius 1 cm which is fixed from one end is given a force of 8 N. The longitudinal strain developed will [\[take\,\gamma =2.5\times {{10}^{11}}N/{{m}^{2}}\]]

    A) \[{{10}^{-8}}\]

    B) \[{{10}^{-6}}\]

    C) \[{{10}^{-5}}\]           

    D) \[{{10}^{-4}}\]

    Correct Answer: A

    Solution :

    [a] \[strain=\frac{F}{\pi {{r}^{2}}\gamma }={{10}^{-8}}\]


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