RAJASTHAN PMT Rajasthan - PMT Solved Paper-1998

  • question_answer
    What is the emissive power of sun when its temperature is doubled:

    A)  2 times               

    B)         4 times

    C)  8 times               

    D)         16 times

    Correct Answer: D

    Solution :

    Emissive power depends upon fourth power of temperature. \[E\propto {{T}^{4}}\] If we double the temperature the emissive power will become \[24=16\] times.


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