Question

The excess pressure inside air bubble of water is

Answer 1

Explanation:

it is found that the excess of pressure in a liquid drop it air bubble in a liquid is two times the surface tension of the liquid over the radius of a drop of the bubble . where as in case of soap bubble that excess of pressure is equal to fit times the surface tension over the radius.

Answer 2

The excess pressure inside an air bubble of water is given by the formula

                     ΔP = 2S / R

where : ΔP = Excess pressure inside the air bubble

              S = Surface tension of the liquid

              R = Radius of the air bubble formed

- This excess pressure is due to the difference of pressure inside and outside the surface of the bubble