Question

what is viscosity what are it's units and dimensions​

Answer 1

Answer :

Viscosity is defined as the resistance of a fluid (liquid or gas) to a change in shape

$\underline{ \: \purple{ \large \sf \fbox{Viscosity = \frac{force \times time}{area} }} \: \: }$

The SI unit of viscosity is newton - sec/m²

The dimensional Formula of viscosity is $\mathtt{ \sf[ {M}^{1} {L}^{ - 1} {T}^{ - 1} ]}$