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A steel rod 25 cm long has a cross -sect...

A steel rod 25 cm long has a cross -sectiional area of `0.8cm^(2)`. What force wouyld be required to stretch this rod by the same amount as the expansion produced by heating it by `10^(@)C`? Given that for steel coefficient of linear expansion and Young's modulus are given as `alpha=1.1xx10^(-5).^(@)C^(-1)` and `Y=2xx10^(11)Nm^(-2)`

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The correct Answer is:
`1.76xx10^(3)N`
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