CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2004

  • question_answer
    When light is incident on a diffraction grating, the zero order principal maximum will be:

    A)  spectrum of the colours

    B)  white

    C)  one of the component colours

    D)  absent

    Correct Answer: B

    Solution :

    When light is incident on a diffraction grating then zero order principal maximum will have only white colour.


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