According to Khosla, the exits gradient of surface flow
A
Depends upon the $$\frac{{\text{b}}}{{\text{d}}}$$ ratio
B
Is independent of the $$\frac{{\text{b}}}{{\text{d}}}$$ ratio
C
Is independent of the depths of $$\frac{{\text{b}}}{{\text{s}}}$$ cut off walls
D
None of these
Correct Answer: Depends upon the $$\frac{{\text{b}}}{{\text{d}}}$$ ratio