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Light

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Linear visible spectrum

A linear representation of the visible light spectrum, with wavelengths in nanometers.

Light is a type of electromagnetic wave, with the wavelength being located in the visible spectrum -- approximately between 380 and 740 nanometers. Light is important because we can see it. The sun gives out light primarily in the visible spectrum and our eyes evolved to detect the light the sun provides.

Shorter waves (with higher frequencies) are labeled "ultraviolet", while longer waves with lower frequencies are known as "infrared".

Other electromagnetic wavesEdit

  1. Wavelengths shorter than ultraviolet are called X-rays or Gamma-rays.
  2. Wavelengths longer than infrared are called radio waves.

See alsoEdit

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