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Physics - Fluid Question with Solution | TestHub

PhysicsFluidViscosityEasy2 minQB

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The rate of water gushing out of a pipe of radius $5 cm$ is $100 L \min^{- 1}$ . The Reynolds number for the flow is of the order of [density of water = $1000 kg m^{- 3}$ , coefficient of viscosity of water = $1 mPa s$ ]

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Answer:

Solution:

Rate of volume flow $= π r^{2} V = 100$ $ℓ$ /min

${πr}^{2} v = \frac{1}{600} m^{3} / s$

Reynolds number $= R_{e} = \frac{ρ \lor D}{η} = \frac{100}{0.1} \times \frac{1}{600 {πr}^{2}} \times 2 r$

$= 3.5 \times 10^{4}$

Stream:JEESubject:PhysicsTopic:FluidSubtopic:Viscosity

⏱ 2mℹ️ Source: QB

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