Viscosity offers resistance to deformation under action of shear force - Fluid Mechanics

Q.  Which property of the fluid offers resistance to deformation under the action of shear force?
- Published on 04 Aug 15

a. density
b. viscosity
c. permeability
d. specific gravity

ANSWER: viscosity

Related Content

 

    Discussion

  • Prajakta   -Posted on 25 Sep 15
    The property of a fluid which offers resistance to deformation under the action of shear force is called as viscosity or dynamic viscosity. The coefficient of dynamic viscosity is denoted by μ.
    Consider the behavior of two layers of fluid moving one over another at a certain distance. The upper layer has more velocity than the lower layer. This upper layer of higher velocity tries to move the lower layer with the same higher velocity, but the lower layer with lower velocity opposes the motion of upper layer. This causes shear stress and this resisting property of liquid is called as viscosity.

➨ Post your comment / Share knowledge


Enter the code shown above:

(Note: If you cannot read the numbers in the above image, reload the page to generate a new one.)
▲