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MGIMS WARDHA MGIMS WARDHA Solved Paper-2005

  • question_answer
    Let there be four articles having colours blue, red, black and white. When they are heated together and allowed to cool, which article       will cool at the earliest?

    A) Blue                                      

    B) Red

    C) Black                                     

    D) White

    Correct Answer: B

    Solution :

    According to wein's law \[T\propto \frac{1}{\lambda }\] Red colour have maximum wavelength, so its temperature will be minimum and hence it will cool at the earliest.


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