1.

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 sop bubble as shown in figure. Just after opening the valve,

Answer»

AIR from end 1 flows TOWARDS end 2. No change in the volume of the soap bubbles
Air from end 1 flows towards end 2. Volume of the soap buble at end 1 decreases
No change occurs
Air form end 2 flows toward end 1. Volume of the soap BUBBLE at end 1 increases

Answer :B


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