The ratios of lengths, areas of cross-section and Young's modulii of steel to that of brass wires shown in the figure are 
and 
respectively. The ratio of increase in the lengths of brass to that of steel wires is [Assume that the masses of steel and brass wires are negligible]
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Now,
So, 
So, 
We know that,
or, 
or, 
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