Identical springs of steel and copper $(Y_{s t e e l} > Y_{c o p p e r})$ are equally stretched

Less work is done on copper spring

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Less work is done on steel spring

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Equal work is done on both the springs

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Data is incomplete

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Solution

The correct option is C Less work is done on copper spring
$\begin{matrix} Since, young's modulus of steel is greater than that of copper. Hence, in order to produce same extension, lange force will have to be applied on the steel spring than that of copper spring ∴ W (steel) > W(copper ) \end{matrix}$
Hence option A is correct

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