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Physics - Fluid Question with Solution | TestHub

PhysicsFluidBernoulli's theorem and applicationsEasy2 minPYQ_2020

PhysicsEasysingle choice

Two water pipes of diameters $2 cm$ and $4 cm$ are connected with the main supply line. The velocity of flow of water in the pipe of $2 cm$ diameter is

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Answer:

Solution:

Given, $d_{A} = 2 cm$ and $d_{B} = 4 cm$

$∴ r_{A} = 1 cm$ and $r_{B} = 2 cm$

From the equation of continuity $a v =$ constant

$∴ \frac{V_{A}}{V_{B}} = \frac{a_{B}}{a_{A}} = \frac{π {(r_{B})}^{2}}{π {(r_{A})}^{2}} = {(\frac{2}{1})}^{2}$

$\Rightarrow V_{A} = 4 V_{B}$

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

⏱ 2mℹ️ Source: PYQ_2020

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