Electromagnetic Spectrum

Edited by Jamie (ScienceAid Editor), SpellBot, Taylor (ScienceAid Editor), vcdanht

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Electromagnetic Spectrum

Light is just part of a continuum of waves called the electromagnetic spectrum. This spectrum includes many types of wave that you will recognize including X-rays and infra-red.

The electromagnetic spectrum is normally given in order of decreasing wavelength or increasing frequency. A summary of the spectrum showing the wavelength and frequency is as follows:

the electromagnetic spectrum

Properties, Dangers and Uses

The properties dangers and applications of the varies waves on the em spectrum are in the table below.

Wave Uses Dangers
Radio Waves
  • Radio transmitters
  • Radar
  • Television
None
Microwaves
  • Microwave ovens
  • Communication system
Internal heating of body tissue
Infra-red
  • Thermal imaging
  • Remote controls
Burns skin
Light
  • Optic fibres
  • Seeing!
Strong light causes damage to vision.
Ultra-violet
  • Washing powder (whiter than white)
  • Security marking
Skin cancer and blindness
X rays
  • Taking images of the skeleton
Mutations in cells and severe burns to the skin.
Gamma Rays
  • Cancer treatment
  • Sterilisation of equipment
Cancers and cell mutation

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Article Info

Categories : Waves

Recent edits by: Taylor (ScienceAid Editor), SpellBot, Jamie (ScienceAid Editor)

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