Prandtl number is expressed by – McqOptions

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1.	Prandtl number is expressed by
A.	\(\frac{Inside\ diameter\ of\ tube}{equivalent\ thickness\ of\ film}\)
B.	\(\frac{specific\ heat\ \times\ viscosity}{thermal\ conductivity}\)
C.	\(\frac{thermal\ conductivity}{equivalent\ thickness\ of\ film}\)
D.	\(\frac{molecular\ diffusivity\ of\ momentum }{thermal\ diffusivity}\)
Answer» E.

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