JEE Main & Advanced Physics Transmission of Heat Question Bank Radiation Stefan's law

  • question_answer
    In MKS system, Stefan's constant is denoted by \[\sigma \]. In CGS system multiplying factor of \[\sigma \]will be

    A)            1    

    B)            \[{{10}^{3}}\]

    C)            \[{{10}^{5}}\]                       

    D)            \[{{10}^{2}}\]

    Correct Answer: B

    Solution :

                       In M.K.S. system unit of s is \[\frac{J}{{{m}^{2}}\times sec\times {{K}^{4}}}\] Þ \[1\frac{J}{{{m}^{2}}\times sec\times {{K}^{4}}}=\frac{{{10}^{7}}erg}{{{10}^{4}}c{{m}^{2}}\times sec\times {{K}^{4}}}\] \[={{10}^{3}}\frac{erg}{c{{m}^{2}}\times sec\times {{K}^{4}}}\]


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