# NEET Physics Mechanical Properties of Fluids Questions Solved

The excess pressure due to surface tension in a spherical liquid drop of radius r is directly proportional to

(a) r                                 (b) ${\mathrm{r}}^{2}$

(c) ${\mathrm{r}}^{-1}$                               (d) ${\mathrm{r}}^{-2}$

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