Practice Surface Tension - GATE & ESE - ME & CH Offered by Unacademy

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Surface Tension

Quick practice

Question 1 of 5

The relation that must hold for the flow to be irrotational is [2000]

A

$\frac{\partial u}{\partial y}=-\frac{\partial v}{\partial x}$

B

$\frac{\partial^{2} u}{\partial x^{2}}+\frac{\partial^{2} v}{\partial y^{2}}=0$

C

$\frac{\partial \mathrm{u}}{\partial \mathrm{x}}=\frac{\partial \mathrm{v}}{\partial \mathrm{y}}$

D

$\frac{\partial \mathrm{u}}{\partial \mathrm{y}}-\frac{\partial \mathrm{v}}{\partial \mathrm{x}}=0$