Question

If two soap bubbles of different radii are connected by a tube.
A. (a) air flows from the smaller bubble to the bigger
B. (b) air flows from bigger bubble to the smaller bubble till the sizes are interchanged
C. (c) air flows from the bigger bubble to the smaller bubble till the sizes become equal
D. (d) there is no flow of air

Answer 1

Correct Answer - A
`p_0-p_i=(2T)/(R)`
`:.P_1gtP_2`
hence air moves from smaller bubble to bigger bubble.