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?

A. 4-3-1-2
B. 4-1-2-3
C. 3-2-1-4
D. 3-1-2-4
Answer» E.


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