MCQOPTIONS
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MCQOPTIONS
| 1. |
The wavelength of I.R in infra-red instruments is about___________ |
| A. | 0.6 * 10<sup>-6</sup> m |
| B. | 1.0 * 10<sup>-6</sup> m |
| C. | 0.7 * 10<sup>-6</sup> m |
| D. | 0.9 * 10<sup>-6</sup> m |
| Answer» E. | |