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Discussion :: UPSC Civil Service Exam Questions

  1. If the mean temperature of Sun's surface 6000 K and λm of its radiation is 0.5 what is the mean temperature of earth surface for which λm is 10.0 μm, according to Wien's Displacement Law in Remote Seniror Concept ?

    2. A.
    25 °C
    B.
    28 °C
    C.
    27 °C
    D.
    30 °C

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    Answer : Option C

    Explanation :

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