1.

For laminar flow over a flat plate, the thickness of the boundary layer at a distance from the leading edge is found to be 5 mm. The thickness of the boundary layer at a downstream section, which is at twice the distance of the previous section from the leading edge, will be

A. 10 mm
B. \(5\sqrt 2 mm\)
C. \(\frac{5}{{\sqrt 2 }}mm\)
D. 2.5 mm
Answer» C. \(\frac{5}{{\sqrt 2 }}mm\)


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