Pick out the wrong statement?

Fluid Mechanics for Chemical 07/01/2021

A. The shear stress at the pipe (dia = D, length = L) wall in case of laminar flow of Newtonian fluids is (D/4L). Δp
B. In the equation, T. gc = k. (du/dy)n the value of ‘n’ for pseudoplastic and Dilatant fluid are 1 respectively
C. Shear stress for Newtonian fluid is proportional to the rate of shear in the direction perpendicular to motion
D. With increase in the Mach number >0.6, the drag co-efficient decreases in case of compressible fluids

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