A tension of 22N is applied to copper wire of crosssectional area 0.02cm^2,Young's modulus of copper is 1.1xx10^11N/m^2 and poisson's ratio 0.32.The decrease in cross-sectional area will be

A tension of 22N is applied to copper wire of crosssectional area 0.02

1.	A tension of 22N is applied to copper wire of crosssectional area 0.02cm^2,Young's modulus of copper is 1.1xx10^11N/m^2 and poisson's ratio 0.32.The decrease in cross-sectional area will be
Answer» `1.28 XX 10^(-6) cm^2` `1.6 xx 10^(-6) cm^2` `2.56 xx 10^(-6) cm^2` `0.64 xx 10^(-6) cm^2` ANSWER :A