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Sahay Sir > Question Answers > NCERT Exemplar Class 11 > Physics > Chapter 9 - Mechanical Properties of Fluids > The sap in trees, which consists mainly of water in summer, rises in a system of capillaries of radius r=2.5×10^−5 m. The surface tension of sap is S=7.28×10^−3 Nm^−1 and the angle of contact is 0^∘. Does surface tension alone account for the supply of water to the top of all tress ?

The sap in trees, which consists mainly of water in summer, rises in a system of capillaries of radius r=2.5×10^−5 m. The surface tension of sap is S=7.28×10^−3 Nm^−1 and the angle of contact is 0^∘. Does surface tension alone account for the supply of water to the top of all tress ?

Iceberg floats in water with part of it submerged. What is the fraction of the volume of iceberg submerged if the density of ice is ρi = 0.917 g cm^−3 ? The sap in trees which consists mainly of water in summer