(B) The capillary rise $h$ is given by $h = \frac{2T \cos \theta}{r \rho g}$. When the tube is cut at a height $h' = 12 \,cm$,which is less than the n

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Water will stay at a height of $12 \,cm$ in the capillary tube.

(B) The capillary rise $h$ is given by $h = \frac{2T \cos \theta}{r \rho g}$. When the tube is cut at a height $h' = 12 \,cm$,which is less than the natural rise of $16.3 \,cm$,the water will not overflow. Instead,the radius of curvature $R$ of the meniscus will adjust itself such that $h' = \frac{2T \cos \theta'}{R \rho g} = 12 \,cm$. Thus,the water will simply rise to the top of the cut tube and stay there,forming a meniscus with a larger radius of curvature.

Class 11 Physics Fluid Mechanics and Surface Tension Capillary Tube and Capillarity

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Water rises to a height of $16.3 \,cm$ in a capillary tube. If the tube is cut at a height of $12 \,cm$ above the water level,what will happen?

A
Water will come out as a fountain from the capillary tube.
B
Water will stay at a height of $12 \,cm$ in the capillary tube.
C
The height of the water in the capillary will be $10.3 \,cm$.
D
Water will flow down the sides of the capillary tube.

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Class 11 Questions

Class 11

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Chapter

Fluid Mechanics and Surface Tension

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Capillary Tube and Capillarity

$A$ capillary tube,when immersed vertically in a liquid,records a rise of $3 \, cm$. If the tube is immersed in the liquid at an angle of ${60^\circ}$ with the vertical,what is the length of the liquid column along the tube in $cm$?

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How does an oil lamp produce light through a wick that is lit using a match?

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$A$ capillary tube $(A)$ is dipped in water. Another identical tube $(B)$ is dipped in a soap-water solution. Which of the following shows the relative nature of the liquid columns in the two tubes?

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Water rises in a capillary tube up to a height $h$. If this capillary tube is tilted by an angle of $45^o$,then the length of the water column in the capillary tube becomes

Medium

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The radius of a capillary tube is $2 \times 10^{-3} \ m$. If a liquid of weight $6.28 \times 10^{-4} \ N$ can be supported in the capillary,what is the surface tension of the liquid?

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Water rises to a height of $16.3 \,cm$ in a capillary tube. If the tube is cut at a height of $12 \,cm$ above the water level,what will happen?

Similar Questions

$A$ capillary tube,when immersed vertically in a liquid,records a rise of $3 \, cm$. If the tube is immersed in the liquid at an angle of ${60^\circ}$ with the vertical,what is the length of the liquid column along the tube in $cm$?

How does an oil lamp produce light through a wick that is lit using a match?

$A$ capillary tube $(A)$ is dipped in water. Another identical tube $(B)$ is dipped in a soap-water solution. Which of the following shows the relative nature of the liquid columns in the two tubes?

Water rises in a capillary tube up to a height $h$. If this capillary tube is tilted by an angle of $45^o$,then the length of the water column in the capillary tube becomes

The radius of a capillary tube is $2 \times 10^{-3} \ m$. If a liquid of weight $6.28 \times 10^{-4} \ N$ can be supported in the capillary,what is the surface tension of the liquid?

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