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  1. What is the wavelength of visible spectrum?

  2. A.
    8500 - 9800 angstrom
    B.
    7800 - 8000 angstrom
    C.
    3900 - 7600 angstrom
    D.
    1300 - 3000 angstrom

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    Answer : Option C

    Explanation :

    No answer description available for this question.


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