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1. |
For flow over a flat plate, the ratio of thermal boundary layer thickness, 'xt' and hydrodynamic boundary layer thickness 'x' is equal to (where, N Pr = Prandtl number) |
A. | N Pr |
B. | N Pr 1/3 |
C. | N Pr -1 |
D. | N Pr -1/3 |
Answer» C. N Pr -1 | |