An air bubble of radius 1.0 mm is observed at a depth of 20 cm below the free surface of a liquid having surface tension 0.095 J / m^2 and density…

An air bubble of radius $\displaystyle 1.0$ mm is observed at a depth of $\displaystyle 20$ cm below the free surface of a liquid having surface tension $\displaystyle 0.095 \mathrm{~J} / \mathrm{m}^2$ and density $\displaystyle 10^3 \mathrm{~kg} / \mathrm{m}^3$. The difference between pressure inside the bubble and atmospheric pressure is $\displaystyle \_\_\_\_$ $\displaystyle \mathrm{N} / \mathrm{m}^2$. (Take $\displaystyle \mathrm{g}=10 \mathrm{~m} / \mathrm{s}^2$ )