For an infinitely long fin, the effectiveness of fin is given as

1.	For an infinitely long fin, the effectiveness of fin is given as
A.	(P k/h A<sub>C</sub>)
B.	(P k/h A<sub>C</sub>)<sup>3/2</sup>
C.	(P k/h A<sub>C</sub>)<sup>1/2</sup>
D.	(P k/h A<sub>C</sub>)<sup>2</sup>
Answer» D. (P k/h A<sub>C</sub>)<sup>2</sup>

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