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What is the unit of coefficient of viscosity?

(a) kgsm^-2

(b) kgms^-2

(c) Nms^-2

(d) Nsm^-2

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This is a very interesting question from Methods of Determination of Coefficient of Viscosity topic in section Viscous Flow & Turbulent Flow of Fluid Mechanics

1 Answer

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Best answer
Right choice is (d) Nsm^-2

Easiest explanation: Coefficient of viscosity is defined as the degree to which the fluid resists flow under an applied force. It is expressed as ratio of shearing stress to the velocity gradient. The unit is Nsm^-2.

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