Overall changes in volume and radii of a uniform cylindrical steel wire are $0.2 \%$ and $0.002 \%$ respectively when subjected to some suitable force. Longitudinal tensile stress acting on the wire is ($Y = 2.0 × 10^{11} Nm^{-2}$)
Overall changes in volume and radii of a uniform cylindrical steel wire are $0.2 \%$ and $0.002 \%$ respectively when subjected to some suitable force. Longitudinal tensile stress acting on the wire is ($Y = 2.0 × 10^{11} Nm^{-2}$)
- A
$3.2 × 10^9 Nm^{-2}$
- B
$3.2 × 10^7 Nm^{-2}$
- C
$3.6 × 10^9 Nm^{-2}$
- D
$4.08 × 10^3 Nm^{-3}$
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