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Electromagnetic Waves. Electromagnetic Waves. All electromagnetic waves travel at the same speed through space (the speed of light) Gamma rays, X-rays, Ultra-violet waves, Light, Infra-red rays, Microwaves, and Radio waves are all electromagnetic waves with different wavelengths

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electromagnetic waves

Electromagnetic Waves

Electromagnetic Waves

  • All electromagnetic waves travel at the same speed through space (the speed of light)
  • Gamma rays, X-rays, Ultra-violet waves, Light, Infra-red rays, Microwaves, and Radio waves are all electromagnetic waves with different wavelengths
  • Some substances absorb EM waves, some reflect them and others transmit them
dangerous radiation

Dangerous radiation

Dangerous radiation

  • X-rays and Gamma rays pass through soft tissues but some is absorbed by cells
  • High doses of UV rays, X-rays and Gamma radiation can kill cells. Smaller doses can causes cells to become cancerous