Physics

Photon energy from wavelength in electronvolts

Photon energy from wavelength in electronvolts measures a system's capacity to perform work or cause change.

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E = 1240/λ

What it means

Photon energy from wavelength in electronvolts measures a system's capacity to perform work or cause change.

How it works and where it is used

Use this calculation for calculating photon energy, hydrogen levels, spectral lines, and the photoelectric effect.