EM waves

• Order of EM waves in increasing frequency and decreasing wavelength:

  • Radio waves
  • Microwaves
  • Infrared
  • Visible Light
  • Ultra Violet
  • X-Rays
  • Gamma Ray
• What are radio waves used for?

  Communication and broadcasting.
• What are microwaves used for?

  Cooking food and satellite communication
• What is infrared radiation used for?

  IR cameras, heaters and cooking food
• What is visible light used for?

  Fibre optic cables
• What is ultraviolet radiation used ofr?

  Tanning and lights
• What are X-Ray and Gamma rays used for and risks?

  Medical imaging but could give cancer