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One end of a horizontal thick copper wir...

One end of a horizontal thick copper wire of length 2L and radius 2R is welded to an end fo another horizontal thin copper wire of lenth L and radius R. When the arrangement is stretched by applying forces at two ends, the ratio of the elongation in the thin wire to that in the thick wire is

A

0.25

B

0.5

C

2

D

4

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SL ARORA-Mechanical Properties of Solids-Example
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