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

  • question_answer
    Four pieces of iron heated in a furnace to different temperatures show different colours listed below. Which one has the highest temperature                                        [MP PET 1992]

    A)            White                                      

    B)            Yellow

    C)            Orange                                   

    D)            Red

    Correct Answer: A

    Solution :

                       At low temperature short wavelength radiation is emitted. As the temperature rise colour of emitted radiation are in the following order                    Red®Yellow®Blue®White (at highest temperature)


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