Two wires of equal length and equal cross sectional areas are suspended as shown in the figure. Their Young's modulii are 
and 
, respectively. The equivalent Young's modulus is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Given, two wires have same length and equal cross-sectional are.
i.e., 
Hence, stress on each wite 
……… (i)
and 
Let Y.be net young moduled
Then, 
…… (iii)
From Eqs. (i), (ii) and (iii), we get
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