In Biot number, the characteristic length used is the ratio of the ___ – McqOptions

MCQOPTIONS

1.	In Biot number, the characteristic length used is the ratio of the _______________ of the solid?
A.	Volume to surface area
B.	Perimeter to surface area
C.	Surface area to volume
D.	Surface area to perimeter
Answer» B. Perimeter to surface area

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