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Physics - Fluid Question with Solution | TestHub

PhysicsFluidViscosityEasy2 minPYQ_2020

PhysicsEasysingle choice

Which of the following diagrams correctly shows the relation between the terminal velocity $v_{T}$ of a spherical body falling in a liquid and viscosity $η$ of the liquid?

Options:

Answer:

Solution:

Hint : At terminal speed. $V_{T} = \frac{2 r ^{2}}{9 η} (ρ_{s} - ρ_{L}) g$ (Assuming other factor constant) So, $V_{T} \propto \frac{1}{η}$ (rectangular hyperbola)

Stream:WBJEESubject:PhysicsTopic:FluidSubtopic:Viscosity

⏱ 2mℹ️ Source: PYQ_2020

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