MCQOPTIONS
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| 1. |
Electro-magnetic spectrum range, which is important for radiation varies from __________ microns. |
| A. | 1 to 100 |
| B. | 0.5 to 50 |
| C. | 10 to 100 |
| D. | 100 to 1000 |
| Answer» C. 10 to 100 | |