The flow of two different fluids over thin flat plates is shown for two cases, A and B. The velocity profiles and boundary thicknesses are to scale.
For these two situations:
(a) There is not enough information to determine the relation between the Reynolds numbers.
(b) The Reynolds number for case A is lower than that for case B.
(c) The Reynolds numbers for cases A and B are the same.
(d) The Reynolds number for case A is higher than that for case B.