MCQOPTIONS
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MCQOPTIONS
| 1. |
The number of photons emitted for a 2.5 mW He-Ne laser is __________ |
| A. | 4.9 X 10<sup>15</sup> |
| B. | 5.9 X 10<sup>15</sup> |
| C. | 6.9 X 10<sup>15</sup> |
| D. | 7.9 X 10<sup>15</sup> |
| Answer» C. 6.9 X 10<sup>15</sup> | |