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Two wires, out of copper and the other o...

Two wires, out of copper and the other of steel, are of same length and cross section. They are welded together to from a long wire. On suspending a weight at its one end, increment in length is found to be 3 cms. If Young's modulus of steel is double that of copper the increment in steel wire will be

A

1 cm

B

2 cm

C

1.5 cm

D

2.5 cm

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The correct Answer is:
A
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