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Electromagnetic spectrum HTML5

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Summary

Here is an overview of the electromagnetic spectrum. There are different types of graphics shown: emitting devices, receiving devices or simple illustrative symbols.

Since electromagnetic waves propagate at a constant speed (speed of light), the frequency and the wavelength remain in a constant ratio.

Click and drag the ruler to shift it horizontally

Learning goals

  • To have an overview of the whole electromagnetic spectrum.
  • To make the link between wavelength and frequency.

Keywords

Learn more

An electromagnetic wave is characterized by its frequency, f (expressed in Hertz) or, its wavelength, λ (expressed in meters).  It travels in a vacuum at the speed of light, c = 300,000…

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