| Answer | Crossword Clue |
|---|---|
| LASER | Light amplifying device |
| MASER | Amplifying device |
| MIKE | Voice-amplifying device |
| MASER | Device amplifying electromagnetic waves |
| RESONATOR | Device for amplifying sound. |
| LASERS | Scientific marvels amplifying light. |
| LASERS | Devices amplifying light waves |
