The discharge through a small rectangular orifice is given by (where Cd = Coefficient of discharge for the orifice, a = Cross-sectional area of the orifice, h = Height of the liquid above the centre of the orifice)?

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  1. Q = Cd × a × 2gh
  2. Q = (2/3). Cd × a × h
  3. Q = (Cd × a)/√(2gh)
  4. Q = (3Cd × a)/√(2h)

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Answer: Option 1

Let'

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