Strenght of Materials

Q.
The strain energy stored in a body due to shear stress, is (where `tau`= Shear stress, C = Shear modulus, and V = Volume of the body)


A. `(tau)/(2C) xx V`
B. `(2C)/(tau V)`
C. `(tau^2)/(2C) xx V`
D. `(2C)/(tau^2 V)`

Answer : Option C

Explanation :