123. There is no change in the volume of a wire due to change in its length on stretching. The Poisson’s ratio of the material of the wire is
(a) + 0.50 (b) – 0.50
(c) 0.25 (d) – 0.25
Answer-b
(11)
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(a) – 5 J (b) – 10 J (c) – 15 J (d) – 20 J Answer-a (126)