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Two exactly similar wires of steel and c...

Two exactly similar wires of steel and copper are stretched by equal forces. If the total elogation is 1cm. Find by how much is each wire elongated ? Given Y for steel ` = 20 xx 10^(11) dyn e//cm^2 and Y for copper = 12xx10^(11) dyn e//cm^2`

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The correct Answer is:
`0.75 cm, 1.25 cm`
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