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Discussion :: Heat Transfer

  1. Pick out the wrong statement.

    2. A.
    The emissivity of a surface decreases, if it gets corroded by atmospheric environment.
    B.
    The emissivity of a surface increases with increase in surface roughness.
    C.
    The emissivity of a polished surface is quite low.
    D.
    The emissivity of a non-metallic surface decreases with increase in the temperature.

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    Answer : Option A

    Explanation :

    No answer description available for this question.

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