The unit of viscosity is -
-
A.
m-kg/hr
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B.
kg/m-hr2
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C.
kg/m-hr
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D.
kg/m2
Correct Answer:
C. kg/m-hr
Explanation:
The unit of viscosity in the MKS system is kg/m-hr. Viscosity measures a fluid's resistance to deformation or flow, and it is defined as the ratio of shear stress to the velocity gradient. In these units, it represents the mass flowing per meter per hour, which corresponds to the internal friction of the fluid. Therefore, kg/m-hr is the correct unit among the provided options.
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