The reciprocal of wavelength is known as the

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See Also

**wave number**(N) and since it is directly proportional to frequency can therefore be used exactly as frequency would be used.**Wave number**denotes the number of waves per centimeter.**wave number**= velocity (c) divided by wavelength (l).6/28/01:

**Frequency**= the number of cycles/waves per TIME.**Wave Number**= the number of cycles/waves per SPACE.See Also

**Frequency****Interval****Oscillation****Revolution****Rotation****Space****Spacetime****Table 12.02.01 - Wavelengths and Frequencies****Time****Unison****Wave****Wave Field****Wavelength**