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The pressure inside a small air bubble o...

The pressure inside a small air bubble of radius `0.1`mm situated just below the surface of water will be equal to [Take surface tension of water `70xx10^-3Nm^-1` and atmospheric pressure`=1.013xx10^5Nm^-2`]

A

`2.054 xx10^3` Pa

B

`1.027 xx10^3` Pa

C

`1.027 xx10^5` Pa

D

`2.054 xx10^5` Pa

Text Solution

Verified by Experts

The correct Answer is:
C
Excess pressure `=(2sigma)/r`
`implies P_("in")-P_("out") =(2sigma)/r`
`implies P_("in")= (2xx7 xx10^(-3))/(0.1xx10^(-3))+1.013xx10^(5)`
`=1.027xx10^5 Pa`
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