15. The ratio of Young’s modulus of the material of two wires is 2 : 3. If the same stress is applied on both, then the ratio of elastic energy per unit volume will be
(a) 3 : 2 (b) 2 : 3
(c) 3 : 4 (d) 4 : 3
Answer-a
(28)
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(a) – 5 J (b) – 10 J (c) – 15 J (d) – 20 J Answer-a (126)