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

  • question_answer
    To break a wire, a force of \[{{10}^{6}}N/{{m}^{2}}\] is required. If the density of the material is \[3\times {{10}^{3}}kg/{{m}^{3}}\], then the length of the wire which will break by its own weight will be

    A) 34m

    B) 30m

    C) 300m

    D) 3m

    Correct Answer: A

    Solution :

    [a] \[L=\frac{S}{dg}=\frac{{{10}^{6}}}{3\times {{10}^{3}}\times 10}=\frac{100}{3}=34m\]


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