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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. \(\frac{5}{{\sqrt 2 }}mm\) | |