Across
- 5. waves have the longest wavelength but lowest frequency
- 7. for Bluetooth & Wi-Fi
- 9. oscillations are perpendicular to the direction of the waves
- 10. for security & sterilising medical equpments
- 12. used in hospital for medical imaging
- 13. oscillations are parallel to the direction of the waves
- 15. angle of ___ is the angle between the normal line and the reflected ray
- 16. the bending of light
- 17. Refractive ___ is the ratio of speed of light in air to the speed of light in medium [n = sin i/sin r]
Down
- 1. the number of wavelengths that pass a point per unit time
- 2. ___ light includes the colours of rainbow
- 3. rays have the shortest wavelength but highest frequency
- 4. the distance between two consecutive, identical points of the wave
- 6. ___ of light is 300,000,000 m/s
- 8. for thermal imaging & remote contollers
- 11. the distance between the peak and the equilibrium point
- 14. angle of ___ is the angle between the normal line and the incident ray