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A fog drop has a diameter of 2xx10^-6m. ...

A fog drop has a diameter of `2xx10^-6`m. Calculate the pressure inside the drop in atmospheres , if the temperature is `20^@` C. Assume the air pressure outside the drop one atmosphere and surface tension of water=0.0727N/m `(1atm=1.013xx10^5N/m^2)` .

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