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  • Water is flowing through two horizontal pipes of different diameters which are connected together. The diameter of the two pipes are 3cm and 6cm respectively. If the speed of water in the narr

Water is flowing through two horizontal pipes of different diameters which are connected together. The diameter of the two pipes are 3cm and 6cm respectively. If the speed of water in the narrower tube is 4m/s. Then the speed of water in the wide tube is-

Option: 1

16 m/s


Option: 2

1 m/s


Option: 3

4 m/s


Option: 4

2 m/s


Answers (1)

best_answer

from\ continuity\ equation, v \propto \frac{1}{A}\\

                                                          v \propto \frac{1}{d^2}

\begin{aligned} \therefore \quad v_2=\left(\frac{d_1}{d_2}\right)^2 v_1 & =\left(\frac{3}{6}\right)^2 \cdot 4 \\ & =1 \mathrm{~m} / \mathrm{s} \end{aligned}

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mansi

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