Across
- 3. unit of frequency
- 4. X rays used to scan for ..... at airports
- 8. also known as heat wave
- 10. a use of visible light to make ..... fibre
- 13. E..... spectrum
- 15. used for EZ link/ERP
- 16. waves transfer .....
- 17. maximum distance between rest point and highest point
Down
- 1. lowest point of wave
- 2. used to detect fake notes/kill bacteria
- 5. the louder the sound, the bigger the .....
- 6. a use of the heat wave
- 7. number of waves per second
- 9. used for microwave oven
- 11. rays used to kill cancer cell
- 12. distance between the two highest/lowest points
- 14. highest point of wave