Newton's law of viscosity relates the____________________?
Correct answer: C. Shear stress and rate of angular deformation in a fluid
- A. Shear stress and velocity
- B. Velocity gradient and pressure intensity
- C. Shear stress and rate of angular deformation in a fluid
- D. Pressure gradient and rate of angular deformation
Explanation
Newton's viscosity law states that shear stress is proportional to the rate of angular deformation, equivalently the velocity gradient, in a Newtonian fluid. It does not directly relate shear stress to velocity itself.
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