wavelength

n. length of a wave (Physics, Electronics)

In physics, wavelength is the distance between repeating units of a propagating wave of a given frequency. It is commonly designated by the Greek letter lambda (λ). Examples of wave-like phenonomena are light, water waves, and sound waves. In a wave, a property varies with the position. For example, this property can be the air pressure for a sound wave, or the magnitude of the electric or the magnetic field for light. The wavelengths of frequencies audible to the human ear (20 Hz–20 kHz) are between approximately 17 m and 17 mm, respectively. Visible light ranges from deep red, roughly 700 nm to violet, roughly 400 nm (430–750 THz). For other examples, see  electromagnetic spectrum.
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The distance between points of corresponding phase of two consecutive cycles of a wave. (188 ) Note: The wavelength, , is related to the propagation velocity, v , and the frequency, f , by = v /f .

the length of one complete cycle of a wave. In semiconductors, wavelength is typically applied to light.

The measurement of the distance from crest to crest, or trough to trough, in transverse waves such as electromagnetic radiation. In all wave motion the shorter the wavelength, the greater the energy carried by the wave. In compressional waves, such as sound waves, it is the measurement of the distance from rarefaction to rarefaction, or compression to compression. Wavelength is linked to frequency . The longer the wavelength, in waves propagating with the same velocity, the less the frequency. [velocity = wavelength x frequency].