Question: Which one of the following represents the correct dimensions of the coefficient of viscosity?
$\left[\mathrm{ML}^{-1} \mathrm{~T}^{-2}\right]$
$\left[\mathrm{MLT}^{-1}\right]$
$\left[\mathrm{ML}^{-1} \mathrm{~T}^{-1}\right]$
$\left[\mathrm{ML}^{-2} \mathrm{~T}^{-2}\right]$
Correct Option: , 3
Solution:
$\mathrm{F}=\eta A \frac{\Delta v}{\Delta x}$, where
$\mathrm{F}=$ force