If the volume of a wire remains constant when subjected to tensile stress, the value of Poisson'...

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If the volume of a wire remains constant when subjected to tensile stress, the value of Poisson's ratio of the material of the wire is
(a) \( 0.1 \)
(b) \( 0.2 \)
(c) \( 0.4 \)
(d) \( 0.5 \)
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