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If the temperature of a rod of length 2 ...

If the temperature of a rod of length 2 m is increased by `100^(@)C`, what will be its increase in length? Given, `alpha` for the rod `=0.000012^(@)C^(-1)`.

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The correct Answer is:
0.24 cm
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Knowledge Check

  • If the temperature of a rod is increased from theta " to " theta^(') thermal strain in it will depend on

    A
    Young's modulus, y
    B
    coefficient of linear expansion, `alpha`
    C
    temperature difference, `(theta^(')-theta)`
    D
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  • When the temperature of a metallic sphere is increased by 40^(@)C then its volume increases by 0.24%. Coefficient of linear expansion of the metal in ""^(@)C^(-1) is

    A
    `2 times 10^(-5)`
    B
    `6 times 10^(-5)`
    C
    `18 times 10^(-5)`
    D
    `1.2 times 10^(-5)`

  • An elastic rod will change its length when it

    A
    slides on rough surface
    B
    rotates about an axis at one end
    C
    falls vertically under its weight
    D
    is pulled along its length by a force acting at one end

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    A steel is 1.5 m long at 20^(@)C . What will be the increase in its length if it is heated up to 100^(@)C?" "alpha for steel =11 times 10^(-6@)C^(-1) .

    When the temperature of a 3 m long iron rod is increased from 0^(@)C to 200^(@)C , the rod increases in length by 7.2 mm. Determine the coefficient of linear expansion of iron.

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