A metal rod undergoes  an elastic strain of `0.04%` and the Young's modulus  of the material is
Channel: Doubtnut
Date: 2020-06-07

A metal rod undergoes  an elastic strain of `0.04%` and the Young's modulus  of the material is `3.6xx10^(10)N//m^(2)`. The energy per unit  volume stored in the rod in  Jule/`m^(3)` is