A uniform cylindrical wire is subjected to a longitudinal tensile stress of `5 xx 10^(7) N//m^(2)`.
Channel: Doubtnut
Date: 2020-07-26

A uniform cylindrical wire is subjected to a longitudinal tensile stress of `5 xx 10^(7) N//m^(2)`. Young's modulus of the material of the wire is `2 xx 10^(11) N//m^(2)`. The volume change in the wire is `0.02%`. The factional change in the radius is