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 `7.30×10^(-2)` N`m^(-1)`. 1 atmospheric pressure =`1.01 × 10^5` Pa, density of water = 1000 kg/`m^3`, g = 9.80 m `s^(-2)`. Also calculate the excess pressure.