MCQOPTIONS
Saved Bookmarks
| 1. |
Which of the following option is correct for given statements about wavelength standard?Statement 1: Gas lasers produce 1000 times more intense light than others. |
| A. | nStatement 2: Lasers cannot be used for some interferometers like Pitter-NPL gauge interferometer. |
| B. | T, F |
| C. | F, T |
| D. | F, F |
| E. | T, T |
| Answer» E. T, T | |