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General
Easy
Question
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,
- 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 bubble at end 1 decreases.
- No change occurs
- Air from end 2 flows towards end 1. Volume of the soap bubble at end 1 increases.
The correct answer is: Air from end 1 flows towards end 2. Volume of the soap bubble at end 1 decreases.
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