question_answer

If S is stress and Y is Young's modulus of material of a wire, the energy stored in the wire per unit volume is     AIEEE  Solved  Paper-2005

A) \[2{{S}^{2}}Y\] 

B)                        \[\frac{{{S}^{2}}}{2Y}\]                 

C)        \[\frac{2Y}{{{S}^{2}}}\]                 

D)        \[\frac{S}{2Y}\]

Correct Answer: B

Solution :

Energy stored in wire and Young's modulus where, strain