Pressure inside two soap bubbles are 1.01 and 1.02 atmosphere, respectively. The ratio of their volumes is:
Surface Tension is a focused chapter in the Properties of Matter unit of JEE Physics that explains the behaviour of liquid surfaces. It introduces cohesion, surface energy, capillary action, and pressure inside drops and bubbles phenomena that explain everyday observations and appear reliably in JEE Main. Although compact, JEE Surface Tension questions offer quick, formula-based marks for well-prepared students. This chapter covers surface tension and surface energy, angle of contact, excess pressure in drops and bubbles, and capillary rise. JEE Main tests direct applications of these relations, while JEE Advanced occasionally combines surface tension with fluid statics or energy concepts. Practising topic-wise JEE Questions helps you master the excess-pressure and capillary formulas that drive most questions here. A clear understanding of surface tension also complements your study of fluid mechanics, since both deal with the behaviour of liquids under different conditions.

