In which one of the following cases will the liquid flow in…

Physics Fluid Mechanics Fluid Flow Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: September 11, 2026

In which one of the following cases will the liquid flow in a pipe be most streamlined

Liquid of high viscosity and high density flowing through a pipe of small radius

Liquid of high viscosity and low density flowing through a pipe of small radius

Liquid of low viscosity and low density flowing through a pipe of large radius

Liquid of low viscosity and high density flowing through a pipe of large radius

Text Solution

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The correct answer is:

For streamline flow, Reynold's number $N_{R} \propto \frac{r \rho}{n}$ should be less. For less value of $N_{R}$ , radius

and density should be small and viscosity should be high.

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