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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)

A. (2/3) Cd × b × √(2gH)

B. (2/3) Cd × b × √(2g) × H

C. (2/3) Cd × b × √(2g) × H3/2

D. (2/3) Cd × b × √(2g) × H2

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