Get Answers to all your Questions

header-bg qa

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}

Posted by

mansi

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE