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Match List I (Surface with Orientations) with List II (Equivalent Emissivity) and select the correct answer:
List I
A. infinite parallel planes
B. Body 1 completely enclosed by body 2
but body 1 is very small
C. Radiation exchange between two small
gray bodies
D. Two concentric cylinders with large
lengthsList II
b. A→2, B→4, C→1, D→3
c. A→2, B→1, C→4, D→3
d. A→3, B→4, C→1, D→2
asked in Mechanical Paper-1, 2004
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