Two soap bubbles of different radii are in communication with each other. Then
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a
air follows from the larger bubble into smaller bubble till both bubbles acquire same size
b
air follows from the smaller bubble into larger bubble and the larger bubble grows in size with decrease in size of the smaller bubble
c
air does not flow but the sizes of the bubbles changes
d
sizes of the bubbles remain unchanged
answer is B.
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Detailed Solution
When two bubbles come into contact, they try to minimize the surface area for which air flows from bubble having higher pressure (smaller radius) to bubble having lower pressure.