For flow over a flat plate, the ratio of thermal boundary layer thickn – McqOptions

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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, NPr = Prandtl number)
A.	NPr
B.	NPr 1/3
C.	NPr -1
D.	NPr -1/3
Answer» C. NPr -1

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