Across
- 3. time taken for one complete oscillation
- 5. what is color of EM wave spectrum 0,7 micrometer ?
- 12. wave has speed 3 x 10^8 m/s
- 13. the number of complete oscillation generated persecond
- 14. periodic back and forth motion of particles of an elastic body or medium
- 15. frequency range is > 20 kHz
Down
- 1. the range of frequencies in which a person can hear
- 2. multiplication sound reflection
- 4. use for maritime radio
- 6. travel parallel to the direction of the vibration
- 7. a disturbance that travels trough a medium from one location to another
- 8. spreading a wave around a barrier or through an opening
- 9. wave that need medium to travel
- 10. the strongest EM wave
- 11. turning back of a wave when it reaches the boundary of the medium through which it is travelling