Roger Dynamic Motion Posted May 29, 2017 Share Posted May 29, 2017 Question : what is the unit of heat do they possess. (photons) Link to comment Share on other sites More sharing options...
swansont Posted May 29, 2017 Share Posted May 29, 2017 Whatever unit of energy you want to use. Joules, ergs, electron-volts, etc. Link to comment Share on other sites More sharing options...
Roger Dynamic Motion Posted May 29, 2017 Author Share Posted May 29, 2017 Whatever unit of energy you want to use. Joules, ergs, electron-volts, etc. does it depend of the frequency of the wave ? and the charge ( Watts). Link to comment Share on other sites More sharing options...
Strange Posted May 29, 2017 Share Posted May 29, 2017 The energy of a photon is directly proportional to its frequency (e=hf). The range of frequencies from a black body is: https://en.wikipedia.org/wiki/Black-body_radiation#Spectrum (Watts is a unit of power not charge) Link to comment Share on other sites More sharing options...
swansont Posted May 29, 2017 Share Posted May 29, 2017 does it depend of the frequency of the wave ? and the charge ( Watts). No. It's common to use a unit appropriate to the scale (e.g. Joules vs eV is large vs small) but energy is energy. You can do a conversion from one unit system to another. EM waves do not have a charge. A watt is a unit of power, which is a rate of energy transfer (watt = joule/second) Link to comment Share on other sites More sharing options...
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