Q. The excess pressure in a bubble of radius R of a gas in a liquid of surface tension S is
A) $\frac{2S}{R}$
B) $\frac{2R}{S}$
C) $\frac{2S}{R^{2}}$
D) $\frac{{2R}^{2}}{S}$
Explanation
(a) Excess pressure inside a bubble of radius $R = \frac{2S}{R}$
where $S$ is the surface tension of the liquid.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.