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

  • question_answer
    When a pressure of 100 atmosphere is applied on a spherical ball, then its volume reduces to 0.01%. The bulk modulus of the material of the rubber in \[dyne/c{{m}^{2}}\] is

    A) \[10\times {{10}^{12}}\]

    B) \[100\times {{10}^{12}}\]

    C) \[1\times {{10}^{12}}\]

    D) \[10\times {{10}^{12}}\]

    Correct Answer: C

    Solution :

    [c] Bulk modulus \[K=\frac{P}{\frac{\Delta V}{V}}=\frac{100}{0.01/100}\] \[={{10}^{6}}atm={{10}^{11}}N/{{m}^{2}}={{10}^{12}}\,dyne/c{{m}^{2}}\]


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