Question

The SI unit of kinematic viscosity $\nu$ is

• A. $m^2/s$
• B. kg/ms
• C. $m/s^2$
• D. $m^3/s^2$

Answer 1

The correct option is A $m^2/s$

Kinematic viscosity:

$\nu =\frac{Dynamicviscosity:\mu }{Density:\rho }=\frac{Ns/m^2}{kg/m^3}$

$=\frac{kgm}{s^2}\times \frac{s}{m^2}\times \frac{1}{kg/m^3}$

$\because 1N=1kgm/s^2$

$=m^2/s$