Jee Advanced
Properties Of Matter
IIT-JEE 2009 Paper 2 Offline
INTEGER+3 / -12009
Two soap bubbles A and B are kept in a closed chamber where the air is maintained at pressure 8 N/m\(^2\). The radii of bubbles A and B are 2 cm and 4 cm, respectively. Surface tension of the soap-water used to make bubbles is 0.04 N/m. Find the ratio \(n_B/n_A\), where \(n_A\) and \(n_B\) are the number of moles of air in bubbles A and B, respectively. (Neglect the effect of gravity.)