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  1. Red light has a wavelength of 70 A°. In "nm" it is

    2. A.

     7 nm
    B.

     0.07 nm
    C.

     70 nm
    D.

     700 nm

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    Answer : Option D

    Explanation :

    Red light has a wavelength of 70 A°. In "nm" it is 700 nm.

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