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WHAT IS CAPILLARY RISE AND CAPILLARY FALL ?
Capillary rise is the rise in a liquid above the level of zero pressure due to a net upward force produced by the attraction of the water molecules to a solid surface (e.g., soil or glass).When one end of a glass capillary tube that is open at both ends, is dipped in a liquid like water that wets the tube, the liquid level in the tube rises to a certain height above the liquid level in the container. Liquids that don't wet the tube like mercury, do not rise in the tube, but fall below its level in the container.


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