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wavelength




wavelength
The distance between successive peaks (or troughs) of a wave. Wavelength is related to the frequency and speed of a wave by the equation:

speed = wavelength × frequency.

For example, a radio wave of wavelength 300 m traveling at 300 million m/s (the speed of light) has a frequency of 1 MHz. The wavelength of a visible light wave, which can range from 390 to 780nm (nanometers), determines its color.


Related categories

   • WAVES AND WAVE PHENOMENA
   • ASTRONOMICAL QUANTITIES