Correct Answer:
Option A - Viscosity :→ It is the measure of resistance of fluid to deformation. It is due to the internal frictional forces developed between different layers of fluid when they are forced to move relative to each other.
A. Viscosity :→ It is the measure of resistance of fluid to deformation. It is due to the internal frictional forces developed between different layers of fluid when they are forced to move relative to each other.