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A wire increases by 10^(-3) of its lengt...

A wire increases by `10^(-3)` of its length when a stress of `1xx10^(8)Nm^(-2)` is applied to it. What is the Young's modulus of the material of the wire?

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Knowledge Check

  • As temperture increases the Young's modulus of the material of a wire

    A
    increases
    B
    decreases
    C
    remains the same
    D
    becomes infinite

  • When a wire is stretched by a force the strain produced in the wire is 2 xx 10^(-4) . If the energy stored per unit volume of the wire is 4 xx 10^(4) "joule"//m^(3) then the Young's modulus of the material of the wire will be,

    A
    `1 xx 10^(12) N//m^(2)`
    B
    `1.5 xx 10^(12) N//m^(2)`
    C
    `2 xx 10^(12) N//m^(2)`
    D
    `2.5 xx 10^(12) N//m^(2)`

  • A uniform cylindrical wire is subjected to a longitudinal tensile stress of 5 xx 10^(7) N//m^(2) . Young's modulus of the material of the wire is 2 xx 10^(11) N//m^(2) . The volume change in the wire is 0.02% . The factional change in the radius is

    A
    `0.25xx10^(-4)`
    B
    `0.5xx10^(-4)`
    C
    `1.0xx10^(-4)`
    D
    `1.5xx10^(-4)`

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