MCQOPTIONS
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| 1. |
The transmittance of interference filters varies between ________ % with a spectral bandwidth of 10 to 15 nm. |
| A. | 15 to 20 % |
| B. | 20 to 60 % |
| C. | 10 to 20 % |
| D. | 15 to 60 % |
| Answer» E. | |