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Class 9-10, JEE & NEET
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The sap in trees, which consists mainly of water in summer, rises in a system of capillaries of radius r = 2.5 × 10m. The surface tension of sap is T = 7.28 × 10 N/m and the angle of contact is 0 . Does surface tension alone account for the supply of water to the top of all tress?