Assertion : Smaller drops of liquid resist de | vedclass

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(B) The excess pressure inside a liquid drop is given by the formula $P = \frac{2T}{r}$,where $T$ is the surface tension and $r$ is the radius of the

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If the Assertion is correct but Reason is incorrect.

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(B) The excess pressure inside a liquid drop is given by the formula $P = \frac{2T}{r}$,where $T$ is the surface tension and $r$ is the radius of the drop.From this relation,it is clear that the excess pressure $P$ is inversely proportional to the radius $r$ $(P \propto \frac{1}{r})$.As the radius $r$ decreases,the excess pressure $P$ increases.Therefore,smaller drops have a higher excess pressure,which makes them more stable and better able to resist deforming forces.Since the excess pressure is inversely proportional to the radius and not directly proportional to the surface area,the Reason is incorrect.Thus,the Assertion is correct,but the Reason is incorrect.

$Assertion :$ 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.

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$Assertion :$ 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.