A vessel completely filled with water has holes 'A' and 'B' at depths 'h' and '3h' from the top respectively. Hole 'A' is a square of side 'L' and 'B' is circle of radius 'r'. The water flowing out per second from both the holes is same. Then 'L' is equal to

Options

A. `r^(1/2)(pi)^(1/2)(3)^(1/2)`
B. `r(pi)^(1/4)(3)^(1/4)`
C. `r(pi)^(1/2)(3)^(1/4)`
D. `r^(1/2)(pi)^(1/3)(3)^(1/2)`

Answer

C