Question

When a fluid flows over a solid surface, the

a.

velocity is uniform at any cross-section.

b.

velocity gradient is zero at the solid surface.

c.

resistance between the surface & the fluid is lesser as compared to that between the fluid layers themselves.

d.

velocity is not zero at the solid surface.

Answer: (b).velocity gradient is zero at the solid surface.

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Q. When a fluid flows over a solid surface, the

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