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The increase in length on stretching a w...

The increase in length on stretching a wire is `0.05 %`. If its poisson's ratio is 0.4, then its diameter

A

reduce by 0.02%

B

reduce by 0.1%

C

increase by 0.02%

D

decrease by 0.4%

Text Solution

Verified by Experts

The correct Answer is:
A
(c) Poisson's ratio`=("Lateral strain")/("Longitudinal strain")`
Lateral strain `=0.4xx(0.05)/(100)`
So, it will be reduced by 0.025.
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