Define capillarity. A capillary tube of radius r is dipped in a liquid of surface tension S. if the angle of contact for given solid liquid surface is acute, derive an expression for the height, to which the liquid will rise in capillary.
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Capillary action is the movement of a liquid through or along another material against an opposing force, such as gravity. ... Examples of capillary action in water include water moving up a straw or glass tube, moving through a paper or cloth towel, moving through a plant, and tears moving through tear ducts.
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