6043. A Bingham fluid of viscosity μ = 10 Pa.s and yield stress, τ₀ = 10 KPa, is shared between flat parallel plates separated by a distance of 10⁻³ m. The top plate is moving with a velocity of 1 m/s. The shear stress on the plate is

10 KPa
20 KPa
30 KPa
40 KPa
✅ The correct answer is option B.

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