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In liquids in order to measure the viscosity of fluid experimentally we consider the variation of shear stress with respect to what property?

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in Fluid Mechanics by (118k points)
In liquids in order to measure the viscosity of fluid experimentally we consider the variation of shear stress with respect to what property?

(a) strain

(b) shear strain

(c) rate of shear strain

(d) none of the mentioned

This question was addressed to me in examination.

Question is taken from Viscosity topic in chapter Properties of Fluids of Fluid Mechanics

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Best answer
Correct option is (c) rate of shear strain

Easiest explanation: By definition, viscosity is shear stress per unit ‘rate of shear strain’.

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