If two soap bubbles of different radii are connected by a tube, then
air flows from bigger bubble to the smaller bubble till sizes become equal
air flows from bigger bubble to the smaller bubble till sizes are interchanged
air flows from smaller bubble to bigger
there is no flow of air
C.
air flows from smaller bubble to bigger
The excess pressure inside the soap bubble is inversely proportional t radius of soap bubble i.e
where r is the radius of the bubble.
It flows that pressure inside a smaller bubble is greater than that inside a bigger bubble. Thus if these two bubbles are connected by a tube, air will flow from smaller bubble to a bigger bubble and the bigger bubble grows at the expense of the smaller one. Air flows from smaller bubble to bigger as the pressure in a smaller bubble is higher.
