Question

17. For a curved liquid surface surface tension gives 17
rise to pressure difference
a) What are the different types of forces acting on
a drop?
b) Obtain an expression for excess pressure inside
a liquid drop
(3)​

Answer 1

Answer:

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Answer 2

Answer:

It is found that the excess of pressure in a liquid drop or air bubble in a liquid is two times the surface tension of the liquid over the radius of the drop or yhe bubble. Whereas, in case of soap bubble that excess of pressure is equal to four times the surface tension over the radius

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