A) 1%
B) 2%
C) 2.5%
D) 4%
Correct Answer: D
Solution :
Poissons ratio = 0.5 Since, density is constant therefore change in volume is zero, we have \[V=A\times l=\text{constant}\] \[\Rightarrow \] \[\log V=\log A+\log \,l\] or \[\frac{dA}{A}+\frac{dl}{l}=0\] \[\Rightarrow \] \[\frac{dl}{l}=-\frac{dA}{A}\] \[\therefore \] Percentage increase in length = 4%You need to login to perform this action.
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