MCQOPTIONS
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| 1. |
Visible spectrum of light has wavelength in the range of |
| A. | 10,000 – 25,000 A° |
| B. | 4,000 – 7,000 A° |
| C. | 1,000 – 4,000 A° |
| D. | 100 – 400 A° |
| Answer» C. 1,000 – 4,000 A° | |