The coefficient of viscosity has the dimensional formula

According to Newton, the viscous force acting between liquid layers of area A and velocity gradient (Deltav)/(Delta z) is given by F = -eta A (dv)/(dz) , where eta is constant called coefficient of viscosity . The dimensional formula of its

Define coefficient of viscosity

Define coefficient of viscosity ?

What is coefficient of viscosity? Mention its dimensional formula.

The coefficient of viscosity for hot air is

The coefficient of viscosity for hot air is

Coefficient of viscosity is _____.