If two soap bubbles of different radii are connected by a tube, then

If two soap bubbles of different radii are connected by a tube, then
  1. air flows from bigger bubble to the smaller bubble till sizes become equal
  2. air flows from bigger bubble to the smaller bubble till sizes are interchanged
  3. air flows from smaller bubble to bigger
  4. there is no flow of air

Solution

Air flows from smaller bubble to bigger as the pressure in smaller bubble is higher.

Asked in: AP EAMCET 2011

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