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Physics - Fluid Question with Solution | TestHub

PhysicsFluidViscosityMedium2 minPYQ_2023

PhysicsMediumsingle choice

The viscous drag acting on a metal sphere of diameter $1 mm$ , falling through a fluid of viscosity $0.8 Pa s$ with a velocity of $2 m s^{- 1}$ is equal toNEET 2023 (Manipur)

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Solution:

Viscous drag acting on sphere is given by $F_{V} = 6 π ηr V = 6 \times \frac{22}{7} \times 0.8 \times \frac{1 0 ^{- 3}}{2} \times 2 = 15.08 \times 1 0^{- 3} N ≃ 15 \times 1 0^{- 3} N$

Stream:NEETSubject:PhysicsTopic:FluidSubtopic:Viscosity

⏱ 2mℹ️ Source: PYQ_2023

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