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Question 6496
NEET Physics · Medium

Mechanical Properties of Fluids: Viscosity MCQ

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ViscosityMediumQuestion 6496

Question

Newton's law of viscosity: shear stress = η × (dv/dy). Here dv/dy is called:
  1. A
    Pressure gradient
  2. B
    Velocity gradient (shear rate)
    Correct
  3. C
    Strain
  4. D
    Reynolds number

Correct answer

Velocity gradient (shear rate)

Explanation

dv/dy = velocity gradient (or shear rate). η is coefficient of viscosity.

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