A tension of 22N is applied to a copper wire of cross sectional area 0.02"cm"^(2), young's modulus of copper is 1.1 xx 10^(11) N//m^(2) and poisson's ratio 0.32. The decrease in cross sectional area will be

A tension of 22N is applied to a copper wire of cross sectional area 0

1.	A tension of 22N is applied to a copper wire of cross sectional area 0.02"cm"^(2), young's modulus of copper is 1.1 xx 10^(11) N//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