JEE Main & Advanced
Physics
Fluid Mechanics, Surface Tension & Viscosity / द्रव यांत्रिकी, भूतल तनाव और चिपचिपापन
JEE PYQ-Fluid Mechanics, Surface Tension and Viscosity
question_answer
Two mercury drops (each of radius' r') merge to from bigger drop. The surface energy of the bigger drop, if T is the surface tension, is: [AIEEE 11-05-2011]