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  1. For infinite parallel planes having emis-sivities ε1 & ε2, the interchange factor for radiation from surface 1 to surface 2 is given by

    2. A.
    (ε1 + ε2)/ε1.ε2
    B.
    ε1.ε2/(ε1 + ε2 - ε1.ε2)
    C.
    ε1.ε2
    D.
    ε1 + ε2

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    Answer : Option B

    Explanation :

    No answer description available for this question.

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