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The mass of photon


illuusio

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I thought light was identical to radio waves except at

a different frequency, radio waves produce voltage in

a conductor by magnetic fields crossing the antenna

in the same way as a flux from a magnet at low

speeds crosses a wire, what is sacred about

light.

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That field has an energy of (roughly) 1012 ergs. That corresponds to a mass of 10-9 grams. So for most purposes we just forget about it.

 

 

That does not say that magnetic field have mass. That says that magnetic fields have energy. The energy is equivalent to the energy contained in 10-9 grams (E = mc2) Equivalent to is not 'is'.

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