Photon energy and momentum (E = hν = hc/λ; p = E/c = h/λ)
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E = hν = hc/λ; p = E/c = h/λ
What each symbol means
| Symbol | What it stands for |
|---|---|
| E | Photon energy (J) |
| p | Photon momentum (kg·m/s) |
| ν,λ | Frequency and wavelength in vacuum |
When to use this
Relates particle properties of light; vacuum relations p = E/c for massless photon.