Correct Answer - Option 1 : 100 N/m

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**Concept:**

The shear stress in oil if one plate is displaced with a certain velocity is given by,

\(\tau = \mu \frac{V}{{{h_o}}}\)

Where μ = Coefficient of the viscosity of the oil, V = velocity of the moving plate, ho = the clearance between the plates

**Calculation:**

**Given:**

μ = 2 N s/m2 , V = 1 m/s, ho = 20 mm = 0.020 m

\(\tau = \frac{{\mu}V}{{{h_o}}} = \frac{2\times1}{0.020} = 100\; N/m^2\)