Question

If soap bubbles of different radii are in communication with each other

• A. Air flows from the larger bubble into the smaller one until the two bubbles are of equal size
• B. The sizes of the bubbles remain unchanged
• C. Air flows from the smaller into the larger one and larger bubble grows at the expense of the smaller one
• D. None of these

Answer 1

The correct option is C Air flows from the smaller into the larger one and larger bubble grows at the expense of the smaller one

temperature remains constant

so, PV=P'V'

the bubble ith large radius will have more volume and hence less pressure.

So, the Air flows from the smaller into the larger one and larger bubble grows at the expense of the smaller one