The hydraulic mean depth or the hydraulic radius is the ratio of
(A) Area of flow and wetted perimeter
(B) Wetted perimeter and diameter of pipe
(C) Velocity of flow and area of flow
(D) None of these
(A) Area of flow and wetted perimeter
(B) Wetted perimeter and diameter of pipe
(C) Velocity of flow and area of flow
(D) None of these