According to Newtonâ€™s law of viscosity, the shear stress on a layer of a fluid is directly proportional to the rate of shear strain. Ideal fluid is a fluid with zero viscosity. Real fluids possess viscosity.

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**17) **Newton's law of viscosity states that for a Newtonian fluid, the

**Answer is:**

## Shear stress is proportional to rate of shear strain

**Explanation:**

**Related ISRO Technical Assistant Mechanical Question Paper - 2017 with Answer Key**

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### Sixteen times

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