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  • If the velocity head of a stream of water is equal to 10cm, then its speed of flow is equal to-Option: 1 1 m/s<

If the velocity head of a stream of water is equal to 10cm, then its speed of flow is equal to-

Option: 1

1 m/s


Option: 2

1.4 m/s


Option: 3

140 m/s


Option: 4

10 m/s


Answers (1)

best_answer

\begin{aligned} \frac{1}{2} \rho v^2=\rho g h,\ \therefore v & =\sqrt{2 g h} \\ v & =\sqrt{2 \times 10 \times 0.1} \\ v & =\sqrt{2} \text { or } 1.414 \mathrm{~m} / \mathrm{s} . \end{aligned}

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