The Young's modulus of steel is twice that of brass. Two wires of same length and of same area of cross-section, one of steel and another of brass are suspended from the same roof. If we want the lower ends of the wires to be at the same level, then the weights added to the steel and brass wires must be in the ratio of
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Assume L and A are length and area of cross-section of each wire hanged by a leveled surface.
Let weights 
and 
are added to steel and brass wires respectively.
Thus, the elongation produced in the steel wire is given by
Elongation produced in the brass wire is given by
= 
[given]
= 2
= 
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