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  1. What is the wavelength of visible spectrum ?

    2. A.

     1300 A°–3000 A°
    B.

     3900 A° – 7600 A°
    C.

     7800 A° – 8000 A°
    D.

     8500 A° – 9800 A°

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    Answer : Option B

    Explanation :

    3900 A° – 7600 A° is the wavelength of visible spectrum.

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