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A solid steel ball of diameter \(3.6\)mm acquired terminal velocity \(2.45\times {10}^{-2}\mathrm{m}/\mathrm{s}\) while …

Q1

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

[JEE Main 2025, 3 Apr (Shift 2)]

a

\(2.18\)

b

\(2.38\)

c

\(1.68\)

d

\(1.99\)

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