photon energy hard

Question

Photon energy E related to frequency f by:

RankGuru · Accepted Answer

This is the **Planck-Einstein relation**, representing the quantization of energy in electromagnetic radiation.
$E = h f$
where $h \approx 6.626 	imes 10^{-34} 	ext{ J}\cdot	ext{s}$ is Planck's constant. 
In terms of wavelength: $E = \frac{hc}{\lambda}$.

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photon energy hard

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