Wavelength-frequency-wave number-photon energy conversion
Quickly convert units of physical quantities commonly used in optics
Enter the value and select the unit, then click "Convert" to obtain the other three corresponding values.
Wave length
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WN
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Frequency
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Energy
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Formula Explanation：
Frequency ν = c / λ
WN k = 1 / λ
Energy E = hν
thereinto c = 3×108 m/s。