The critical depth in a $2 \mathrm{~m}$ wide rectangular channel carrying a discharge of $10 \mathrm{~m}^{3} / \mathrm{s}$ and taking value of acceleration due to gravity $(g)$ as $9.81 \mathrm{~m} / \mathrm{s}^{2}$ is _________ (in m, rounded off to two decimal places).
