A uniform wire (Young.s modulus 2xx10^(11) Nm^(-2)) is subjected to longitudinal tensile stress of 5 xx 10^(7)Nm^(-2). If the overall volume change in the wire is 0.02%, the fractional decrease in the radius of the wire is close to :

A uniform wire (Young.s modulus 2xx10^(11) Nm^(-2)) is subjected to lo

1.	A uniform wire (Young.s modulus 2xx10^(11) Nm^(-2)) is subjected to longitudinal tensile stress of 5 xx 10^(7)Nm^(-2). If the overall volume change in the wire is 0.02%, the fractional decrease in the radius of the wire is close to :
Answer» `1.0xx10^(-4)` `1.5XX10^(-4)` `0.25xx10^(-4)` `5xx10^(-4)` ANSWER :3