Manipal Engineering Manipal Engineering Solved Paper-2009

  • question_answer
     The surface temperature of the stars if determined using

    A)  Plancks law

    B)  Wiens displacement law

    C)  Rayleigh-Jeans law

    D)  Kirchhoffs law

    Correct Answer: B

    Solution :

    The surface temperature of the stars is determined using Wiens displacement law. According to this law,\[{{\lambda }_{m}}T=b\]                 where\[b\]is Wiens constant whose value is\[2.898\times {{10}^{-3}}mK\].


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