4. Find the discharging through a fully submerged orifice of width 2 m. if the difference of water levels on both sides of the orifice be 50 cm. The height of water from top and bottom of the orifice...

Extracted text: 4. Find the discharging through a fully submerged orifice of width 2 m. if the difference of water levels on both sides of the orifice be 50 cm. The height of water from top and bottom of the orifice are 2.50 m. and 2.75 m., respectively. Take Cd = 0.60.