Q .     A tension of `20`N applied to a copper wire of crossectional area `0.01cm^2`, Young's Modulus of copper is `1.1xx10^11N/m^2` and Poisson's ratio is `0.32.`The decrease in cross sectional area of the wire is

EAMCET 2013
A

`1.16xx10^-6cm^2`

B

`1.16xx10^-5cm^2`

C

`1.9xx10^-4m^2`

D

`1.16xx10^-3cm^2`

HINT

`text(Poisson ratio) = text(Transversal strain)/ text(Lateral strain)`
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