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A tension of 20 N is applied to a copper...

A tension of 20 N is applied to a copper wire of cross sectional area 0.01 `cm^(2)`, Young's modulus of copper is `1.1 xx 10^11N//m^(2)` and Poisson's ratio is 0.32. The decrease in cross sectional area of the wire is

A

`1.16 xx 10^(-6) "cm"^(2)`

B

`1.16 xx 10^(-5) cm^(2)`

C

`1.16 xx 10^(-4) cm^(2)`

D

`1.16 xx 10^(-3) cm^(2)`

Text Solution

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The correct Answer is:
A
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