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State Hooke's law. A metallic wire of Yo...

State Hooke's law. A metallic wire of Young's modulus Y is stretched by suspending a load from it. If the linear strain produced in it is `mu`, obtain an expression for the elastic potential energy, in terms of Y and `mu` , stored in unit volume of the wire.

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Knowledge Check

  • When an elastic material with Young's modulus Y is subjected to a stretching stress, the elastic energy stored per unit volume of the material is

    A
    `Ys//2`
    B
    `s^(2)Y //2`
    C
    `s^(2)//2Y`
    D
    `s//2Y`

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