Question

consider a water drop and a bubble, which has higher pressure inside?why?​

Answer 1

Answer:

Excess Pressure inside a Liquid Drop:

As we know that, the force due to surface tension act normal to the surface in inward direction on the molecules of a liquid drop. ... Let R be the radius of a drop and dR be the increase in its radius by small amount due to excess pressure.

Air Pressure In Bubble

A bubble of air within a liquid has only one liquid-air surface and the excess pressure within such a bubble is simply: Excess pressure in an air bubble (P) = 2T/r. Both these formulae show that the excess pressure within a small bubble is greater than that within a larger bubble.

Answer 2

Answer:

a bubble since the air tries its best to come out .

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