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| Light can be envisioned as a wave moving through space at a constant speed, usually designated c. The distance from one wavecrest to the next is the wavelength, often denoted by the Greek letter lambda, lambda. |
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| Light can be envisioned as a wave moving through space at a constant speed, usually designated c. The distance from one wavecrest to the next is the wavelength, often denoted by the Greek letter lambda, lambda. |
The frequency f is the number of wavecrests that pass a fixed point per second and is related to the wavelength and the speed of light by f = c/lambda.