JEE Advanced | 2013Heat and Thermal ExpansionHard
Question
One end of a horizontal thick copper wire of length 2L and radius 2R is welded to an end of another horizontal thin copper wire of length 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 :-
Options
A.0.25
B.0.50
C.2.00
D.4.00
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