A glass tube of uniform internal radius `(r)` has a valve separating the two identical ends. Initially, the valve is in a tightly closed position. End `1` has a hemispherical soap bubble of radius `r`. End `2` has sub-hemispherical soap bubble as shown in figure. Just after opening the valve.
A. air from ene 1 flows towards end 2. No change in the volume of the soap bubbles.
B. air from end 1 flows towards end 2. Volume of the soap bubble at end 1 decreases
C. no change occurs
D. air from end 2 flows towards end 1. Volume of the soap bubble at end 1 increases.
