Railways Basic Science and Engineering Thermodynamics Question Bank Heat and Temperature

  • question_answer At temperature T, the emissive power and absorption power of a body for certain wavelength are \[{{e}_{1}}\], and \[{{a}_{1}}\] respectively, then

    A)  \[{{e}_{1}}={{a}_{1}}\]

    B) \[{{e}_{1}}>{{a}_{1}}\]         

    C) \[{{e}_{1}}<{{a}_{1}}\]

    D)   there will not be any definite relation between \[{{e}_{1}}\] and \[{{a}_{1}}\]

    Correct Answer: A


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