| 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
Correct Answer: D
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