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An air bubble of radius r in water is at...

An air bubble of radius r in water is at a depth h below the water surface at some instant if P is atmospheric pressure and d & T are the density and surface tension of water, what is the pressure inside the bubble ?

Text Solution

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`"Excess of pressure inside the air bubble in water" =(2T)/(r)`
`:.` Total pressure inside the air bubble atmospheric pressure + pressure due to liquid column + Excess pressure due to surface tension
`=P=hrhog+(2T)/(r)`
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