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Physics - Fluid Question with Solution | TestHub

PhysicsFluidSurface TensionMedium2 minPYQ_2020

PhysicsMediumsingle choice

Water rises to a height $3 cm$ in a capillary tube. If cross-sectional area of capillary tube is reduced to $\frac{1}{0}$ th initial area then water will rise to a height of

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Solution:

$h_{1} r_{1} = h_{2} r_{2}$ $\frac{h _{1}}{h _{2}} = \frac{r _{2}}{r _{1}}$ $A \propto r^{2}$ $A \propto r$ $∴ h_{2} = h_{1} \frac{A _{1}}{A _{2}} = 39 = 3 \times 3 = 9 cm$

Stream:MHT_CETSubject:PhysicsTopic:FluidSubtopic:Surface Tension

⏱ 2mℹ️ Source: PYQ_2020

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