Electromagnetic spectrum

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