Physics · Fluid Mechanics
Which of the following is the precise definition of a fluid's coefficient of viscosity (η)?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The ratio of shearing stress to fluid weight
- 2The ratio of shearing stress to fluid density
- 3The ratio of shearing stress to the velocity gradient of the fluid✓
- 4The ratio of shearing stress to strain rate
Correct answer
The ratio of shearing stress to the velocity gradient of the fluid
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