A plate fin of length L = 1.5 cm and thickness 2 mm has efficiency of____ (if k = 210 W/m-K, h = 285 W/m2K)

A plate fin of length L = 1.5 cm and thickness 2 mm has efficiency of_

1.	A plate fin of length L = 1.5 cm and thickness 2 mm has efficiency of____ (if k = 210 W/m-K, h = 285 W/m2K)
A.	84.1%
B.	87.2%
C.	89.9%
D.	92.4%
Answer» D. 92.4%

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A plate fin of length L = 1.5 cm and thickness 2 mm has efficiency of____ (if k = 210 W/m-K, h = 285 W/m2K)

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