NEET Physics Viscosity MCQ Question with Solution

If a fluid has a shearing stress of 5 N/m² and a strain rate of 0.5 s⁻¹, what is its viscosity?

A

10 Pa s

B

0.1 Pa s

C

5 Pa s

D

25 Pa s

Option A

Viscosity is defined as the ratio of shearing stress to the strain rate. Therefore, viscosity η = 5 N/m² / 0.5 s⁻¹ = 10 Pa s.

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