A glass tube of uniform internal radius 
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 
. The end 2 has sub-hemispherical soap bubble as shown in the figure. Just after opening the valve:
Text Solution
Verified by ExpertsThe correct answer is:
B
Hemispherical soap bubble has large radius of curvature, so it has less pressure and hence air flows from 1 (high pressure) towards 2 (at low pressure).
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