microwaves are radio waves. what else would you call them? the telephone company uses microwaves to communicate signals just as done with radio waves. other than the frequency parameter (and consequently wavelength), which is only a quantitative difference, what else is different between microwaves and what gets tuned in by your FM receiver?linux kid said:I know that electricity can be coverted to microwaves obviously.
But how is it converted to radio waves?
in my sorta silly thought experiment, i glossed over one important fact: the finite speed of light and that charged particles may not move as fast as c. this defines a physical size for radiating elements (around 1/2 wavelength). for microwaves, the physical radiating element is actually the cavity inside of the vacuum tubes at the back end of the transmitter and the microwave radiation is actually piped out to the big horns for transmission with metal waveguides. for visible light, the radiating elements get closer to the molecular/atomic level.michaeltorrent said:i have a question,
is it possible for us to run very high oscillating current in an antenna as high as 5x10^14 hz?
if we can, then it will produced visible light from the antenna.??
The radiation itself isn't a particle, it's a disturbance in the electromagnetic fields between the transmitter and receiver.linux kid said:What is electromagnetic radiation made of? What are the particles moving back and forth between the two charges?
there are also particle like properties of E&M radiation as depicted in the photoelectric effect. that's where Planck's constant first appeared.eeka chu said:The radiation itself isn't a particle, it's a disturbance in the electromagnetic fields between the transmitter and receiver.