The discharge through a rectangular notch is given byAQ= 2/3 Cd Ch^(5/2 )BQ= 2/3Cd LH^(3/2)CQ=8/15 Cd LH^(5/2)DQ= 8/15Cd LH ^(3/2)Answer: B. Q= 2/3Cd LH^(3/2)