__The interchange factor for radiation heat transfer from surface 'x' – McqOptions

MCQOPTIONS

1.	__The interchange factor for radiation heat transfer from surface 'x' to surface 'y' in case of an infinite parallel planes with emis-sivities ≈í¬µx & ≈í¬µy is given by__
A.	≈í√Øx + ≈í¬µy
B.	≈í√Øx . ≈í¬µy
C.	1/≈í¬µx + 1/≈í¬µy
D.	(≈í¬µx + ≈í¬µy)/(≈í¬µx + ≈í¬µy - ≈í¬µx . ≈í¬µy)
Answer» E.

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