A wide rectangular channel carries a flow of 2.96 m 3 /s per metre width. The bed slope of the channel is 1.0 ×  10 –4 and Manning’s n = XXXXXXXXXXIf at a section the depth of flow is 1.5 m the energy...

A wide rectangular channel carries a flow of 2.96 m³
/s per metre width. The bed slope of the channel is 1.0 ×  10^–4
and Manning’s n = 0.021. If at a section the depth of flow is 1.5 m the energy slope at that section is

(a) 0.01

(b) 0.00228

(c) 0.0009

(d) 0.001