EM waves

• • electromagnetic waves are transverse waves
• the order of waves are:

  • radio
  • microwave
  • infrared
  • visible light
  • ultraviolet
  • x-ray
  • gamma
• electromagnetic waves:

  • transfer energy as radiation
  • can travel through vacuum
  • travel at same speed through vaccuum or air
  • travel at 300 millions m/s
• • going down the spectrum:
  • frequency increases
  • wavelength decreases
• examples of long wavelength radiation are:

  • radio waves
  • microwaves
  • infrared
  • visible light
• examples of short wavelength radiation are:

  • ultraviolet
  • x-rays
  • gamma rays