Consider flow in a long and very wide rectangular open channel. Width of the channel can be considered as infinity compared to the depth of flow. Uniform flow depth is $1.0 \:\mathrm{ m}$. The bed slope of the channel is $0.0001$. The Manning roughness coefficient value is $0.02$. Acceleration due to gravity, $g$ can be taken as $9.81 \mathrm{~m} / \mathrm{s}^{2}$.
The critical depth (in $\mathrm{m}$ ) corresponding to the flow rate resulting from the above conditions is $\_\_\_\_\_\_\_\_\_\_$ (round off to one decimal place).
- $0.4$
- $0.3$
- $0.6$
- $0.1$
