The distance between crests of a wave. The wavelength determines the
nature of the various forms of radiant energy that comprise the
electromagnetic spectrum. For electromagnetic waves, the wavelength in
meters is computed by the speed of light divided by frequency
(300,000,000/Hz). For sound waves, the wavelength is determined by

Length of a Wave

The wavelength is the distance between crests. The higher the frequency, the shorter the wavelength.

Wavelengths of Visible Light

The wavelengths of light that humans can see range from approximately 400 nm to 750 nm.


An amateur radio operator, Royal Signals veteran, jack of all trades and master of none.

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