Across
- 3. X-rays
- 4. wavelenghts or frequencies
- 10. visible light extend
- 11. the substance through which a wave can propagate
- 12. Gravitational waves
- 13. launching of a rocket
- 14. ultrasound
- 15. vibrations in a guitar string.
Down
- 1. ocean waves motion
- 2. microwave
- 5. rainbow pattern
- 6. police radar
- 7. camera lenses
- 8. water surface
- 9. modern electronic automobile muffler