The lower end of a capillary tube of diameter 2.00 mm is dipped 8.00 cm below the surface of water in a beaker.What is the pressure required in the tube in order to blow a hemispherical bubble at its end in water? The surface tension of water at temperature of the experiments is 7.30x10^-2 Nm . l atmospheric pressure = 1.01 x 10^5 Pa, density of water = 1000 kg/m ,g = 9.80 m/s². Also calculate the excess pressure.
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