- #1
Crazymechanic
- 831
- 12
I apologize as this question would be answered probably by a google search but as a simple question maybe it would have some interest from others too.
So How do we have different wavelength of visible light different frequencies of AC the mains 50hz and upto khz in the smps and even more on radio waves and tv broadcast.
Well ok I understand why is the frequency like 50hz in the "mains" as with the generator rotor speed and so on but all these fields are electromagnetic fields and the carrier in all the cases is the massless photon.And because the photon is massless it can reach "c" and always travels at c so when it has a fixed speed and constant speed all the time why do the field it mediates can have so varying spectrum of different frequencies?
So How do we have different wavelength of visible light different frequencies of AC the mains 50hz and upto khz in the smps and even more on radio waves and tv broadcast.
Well ok I understand why is the frequency like 50hz in the "mains" as with the generator rotor speed and so on but all these fields are electromagnetic fields and the carrier in all the cases is the massless photon.And because the photon is massless it can reach "c" and always travels at c so when it has a fixed speed and constant speed all the time why do the field it mediates can have so varying spectrum of different frequencies?