An aluminium rod with Young's modulus \(Y=7.0 \times 10^{10}\) \(\mathrm{N} / \mathrm{m}^{2}\) undergoes elastic strain …

An aluminium rod with Young's modulus \(Y=7.0 \times 10^{10}\) \(\mathrm{N} / \mathrm{m}^{2}\) undergoes elastic strain of \(0.04 \%\). The energy per unit volume stored in the rod in SI unit is:

[JEE Main 2023, 8 Apr (Shift 1)]