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Discussion :: GATE Mechanical

  1. Two large diffuse gray parallel plates, separated by a small distance, have surface temperatures of 400 K and 300 K. If the emissivities of the surfaces are 0.8 and the Stefan-Boltzmann constant is 5.67 * 10-8W/m2K4, the net radiation heat exchange rate in kW/m2 between the two plates is
    2. A.
    0.66
    B.
    0.79
    C.
    0.99
    D.
    3.96

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    Workspace

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    Answer : Option A

    Explanation :

    -NA-

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