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Why pressure ...

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Why pressure inside a liquid drop is greater than outside.Explain in detail.

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Q. There are two liquid drops of different radii. The excess pressure inside over the outside is:-

Q. What will be the diameter (in

mm

) of a water droplet, the pressure inside which is

0.05 {N/cm}^{2}

greater than the outside pressure? (Take surface tension as

0.075 N/m

Q. Assertion :Smaller drops of liquid resist deforming forces better than the larger drops. Reason: Excess pressure inside a drop is directly proportional to surface area.

Q. Assertion: Smaller drops of liquid resist deforming forces better than the larger drops

Reason: Excess pressure inside a drop is directly proportional to its surface area.

Q. The surface tension of water in contact with air at

18^{\circ} C

0.073 N/m

. The pressure inside a droplet of water is to be

0.02 {N/cm}^{2}

greater than the outside pressure. Calculate the diameter of the droplet of water.

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