Q. What is the characteristic of a fluid to exert a force between it so as to reduce the relative motion between the fluid membranes?
Solution:
Viscosity
Viscosity is the characteristic of a fluid to exert a force between it so as to reduce the relative motion between the membranes.
Viscous force is the frictional force acting parallel to the membranes in such a way as to interfere with their relative motion between the moving fluid membranes.
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