Which one of the following represents the correct dimensions of the coefficient of viscosity?
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option 1 is correct
From stokes law, Viscous force F = \(6\pi \eta rv\) \( \Rightarrow \eta = {F \over {6\pi rv}}\) \(\therefore[\eta] = {[{ML{T^{ - 2}}]} \over {[L][L{T^{ - 1}}]}}\) \( \Rightarrow [\eta] = [M{L^{ - 1}}{T^{ - 1}}]\)
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