Calculate the excess of pressure inside an air bubble of radius 1 mm formed just below the free surface of water. Given surface tension of water 72xx10^-3Nm^-1.

Calculate the excess of pressure inside an air bubble of radius 1 mm f

1.	Calculate the excess of pressure inside an air bubble of radius 1 mm formed just below the free surface of water. Given surface tension of water 72xx10^-3Nm^-1.
Answer» <P> SOLUTION :EXCESS PRESSURE P = 2s/R = `(2xx72xx10^-3)/(1xx10^-3)=144Nm^-2`