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PhysicsFluidSurface TensionEasy2 minPYQ_2023

PhysicsEasysingle choice

The height of liquid column raised in a capillary tube of certain radius when dipped in liquid $A$ vertically is, $5 cm$ . If the tube is dipped in a similar manner in another liquid $B$ of surface tension and density double the values of liquid $A$ , the height of liquid column raised in liquid B would be ______ $m$ .

Options:

Answer:

Solution:

The height $h$ through which a liquid will rise in a capillary tube of radius $r$ is given by,

$h = \frac{2 T \cos θ}{r ρ g} \propto \frac{T}{ρ} \propto \frac{2 T}{2 ρ}$

As we can see in both cases, value of height will remain same. Therefore,

$h^{'} = h = 5 cm = 0.05 m$

Stream:JEESubject:PhysicsTopic:FluidSubtopic:Surface Tension

⏱ 2mℹ️ Source: PYQ_2023

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