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  1. Consider the following parts of spectra
    1. Visible
    2. Infrared
    3. Ultraviolet
    4. Microwave
    Which one of the following is the correct sequence in which their wavelengths increase?
    1. 4-3-1-2
    2. 4-1-2-3
    3. 3-2-1-4
    4. 3-1-2-4
Correct Option: D

NA


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