In the night sky: Orion

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In the night sky: Orion

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wavelength

The distance between one part of the wave profile, (e.g. the peak of the wave) at a particular instant in time, and the next identical part of the wave profile at the same instant in time. Wavelength λ is related to frequency f and speed v of a wave by v = fλ.

» Orion Glossary

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wavelength