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The discharge over a rectangular notch is (where b = Width of notch and H = Height of liquid, above the sill of the notch)

The discharge over a rectangular notch is (where b = Width of notch and H = Height of liquid, above the sill of the notch) Correct Answer $$\frac{2}{3}{{\text{C}}_{\text{d}}} \times {\text{b}}\sqrt {2{\text{g}}} \times {{\text{H}}^{\frac{3}{2}}}$$

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