A conical draft tube discharges water at outlet at the rate of 30 m3/s and with a velocity of 1.3 m/s. The diameter at the top is 2 m and pressure head is at 7.3 m of water (vacuum). If the total length of draft tube is 6 m, then the length of draft tube immersed in water is (in cm)_____
[Atmospheric pressure head = 10.3 m and neglect any losses in draft tube]
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