MCQOPTIONS
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| 1. |
What is the range of visible light of electromagnetic spectrum? |
| A. | 380 to 780 mm |
| B. | 780 to 1080 nm |
| C. | 380 to 780 nm |
| D. | 380 to 1080 nm |
| Answer» D. 380 to 1080 nm | |