Which one of the following represents the correct dimensions

Question:

Which one of the following represents the correct dimensions of the coefficient of viscosity?

  1. $\left[\mathrm{ML}^{-1} \mathrm{~T}^{-2}\right]$

  2. $\left[\mathrm{MLT}^{-1}\right]$

  3. $\left[\mathrm{ML}^{-1} \mathrm{~T}^{-1}\right]$

  4. $\left[\mathrm{ML}^{-2} \mathrm{~T}^{-2}\right]$


Correct Option: , 3

Solution:

$\mathrm{F}=\eta A \frac{\Delta v}{\Delta x}$, where

$\mathrm{F}=$ force

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