The excess pressure due to surface tension in a spherical liquid drop – McqOptions

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1.	The excess pressure due to surface tension in a spherical liquid drop of radius r is directly proportional to [MP PMT 1987; KCET 2000]
A.	\[r\]
B.	\[{{r}^{2}}\]
C.	\[{{r}^{-1}}\]
D.	\[{{r}^{-2}}\]
Answer» D. \[{{r}^{-2}}\]

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