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Define Viscosity. What are its units and...

Define Viscosity. What are its units and dimensions?

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Viscosity: The property of a fluid which opposes the relative motion between the layers is called viscosity.
Units of SI: Coefficient of viscosity
`Nm^-2s(or)Pa-s.(or) Poiseuill e`
Units of C.G.S: Coefficient of viscosity = poise.
The dimensional formula = `ML^-1 T^-1`.
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