A solid steel ball of diameter 3.6 mm acquired terminal velocity 2.45 × 10^-2 m / s while falling under gravity through an oil of density 925 kg…

A solid steel ball of diameter $\displaystyle 3.6$ mm acquired terminal velocity $\displaystyle 2.45 \times 10^{-2} \mathrm{~m} / \mathrm{s}$ while falling under gravity through an oil of density $\displaystyle 925 \mathrm{~kg} \mathrm{~m}^{-3}$. Take density of steel as $\displaystyle 7825 \mathrm{~kg} \mathrm{~m}^{-3}$ and g as $\displaystyle 9.8 \mathrm{~m} / \mathrm{s}^2$. The viscosity of the oil in SI unit is