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  4. Figure shows a capillary tube C dipped in a liquid that wets it. The liquid rises to a point A. If we blow air through the horizontal tube H, what will happen to the liquid column in the capillary tube?

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Q. Figure shows a capillary tube $C$ dipped in a liquid that wets it. The liquid rises to a point $A$. If we blow air through the horizontal tube $H$, what will happen to the liquid column in the capillary tube?Physics Question Image

Mechanical Properties of Fluids

Solution:

The air through the horizontal tube will decrease the pressure and more liquid will be pushed into the capillary tube.