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PhysicsFluidBernoulli's theorem and applicationsEasy2 minPYQ_2020

PhysicsEasysingle choice

Two water pipes $P$ and $Q$ having diameter $2 \times 10^{- 2} m$ and $4 \times 10^{- 2} m$ respectively are joined in series with the main supply line of water. The velocity of water flowing in pipe $P$ is

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Answer:

Solution:

Using theorem of continuity, we have

$π D_{p}^{2} v_{p} = π D_{Q}^{2} v_{Q};$

$v_{p} = {(\frac{D_{Q}}{D_{P}})}^{2} v_{Q} = {(\frac{4 \times 10^{- 2}}{2 \times 10^{- 2}})}^{2} \times v_{Q} = 4 v_{Q}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:FluidSubtopic:Bernoulli's theorem and applications

⏱ 2mℹ️ Source: PYQ_2020

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