Question
The excess pressure inside an air bubble of radius r just below the surface of water is P1. The excess pressure inside a drop of the same radius just outside the surface is P2. If T is surface tension then
Options :
P1 = 2P2
P1 = P2
P2 = 2P1
P2 =0, P1≠ 0
Answer :
P1 = P2
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