An air bubble of radius r in water is at a depth h below the water surface at some instant. If P is atmosphere pressure and d and T are the density and surface tension of water respectively, the pressure inside the bubble will be--
  1. P +hdg - 4T/r
  2. P +hdg +2T/r
  3. P +hdg - 2T/r
  4. P +hdg +4T/r

  • -1
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