- #1
xaratustra
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How is energy of electromagnetic waves (classical electrodynamics → Poynting vector) related to the photon energy (E=hv) ?
e.g. what is exactly the difference between photons from two radio stations or two laser devices with the same frequency, but different power?
thanks!
![Cool :cool: :cool:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
e.g. what is exactly the difference between photons from two radio stations or two laser devices with the same frequency, but different power?
thanks!