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Question 11.1: A circular orifice 20 mm in diameter with a discharge coeffi...

A circular orifice 20 mm in diameter with a discharge coefficient C_{d} = 0.6 is fitted to the base of a tank having a constant cross-sectional area of 1.5 m. Determine the time taken for the water level to fall from 3.0 m to 0.5 m above the orifice.

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