How are light waves and radio waves formed? What is the differance in the two?
December 21, 2009 - 12:02 am
I’ve heard that they’re the same thing? Why can we not see radio waves? Absence of photons? If that’s correct, why are photons absent in radio waves? Or am I just totally gone beyond the possibility of safe return?
These are formed by an acceleration of electromagnetic charge. electrical fields create magnetic fields etc. so a self propagating wave is formed. Yes, they basically are the same thing. All electromagnetic waves are essentially the same except in frequency, and hence wavelength. The strength is based on frequency.
You can’t see radio waves, just as you cannot detect some very low pitched sounds, under 40Hz and high pitched over about 20000Hz.
this will help you:
http://www.lbl.gov/MicroWorlds/ALSTool/EMSpec/EMSpec2.html
December 21st, 2009 at 5:40 am
These are formed by an acceleration of electromagnetic charge. electrical fields create magnetic fields etc. so a self propagating wave is formed. Yes, they basically are the same thing. All electromagnetic waves are essentially the same except in frequency, and hence wavelength. The strength is based on frequency.
You can’t see radio waves, just as you cannot detect some very low pitched sounds, under 40Hz and high pitched over about 20000Hz.
this will help you:
http://www.lbl.gov/MicroWorlds/ALSTool/EMSpec/EMSpec2.html
References :
December 21st, 2009 at 6:26 am
Radio waves come in packets of energy called photons, just like visible light. But our eyes are sensitive to only a small portion of the electromagnetic spectrum. (Some animals can see further, but surely not into the radio portion, which is far too low energy.)
References :
December 21st, 2009 at 7:11 am
Light Wave, light conveyed by wave motion rather than as a stream of particles
Radio waves are used not only in radio broadcasting but in wireless telegraphy, telephone transmission, television, radar, navigational systems, and space communication. In the atmosphere, the physical characteristics of the air cause slight variations in velocity, which are sources of error in such radio-communications systems as radar. Also, storms or electrical disturbances produce anomalous phenomena in the propagation of radio waves.
References :
December 21st, 2009 at 7:55 am
Check this out
http://www.physics.bc.edu/Deptsite/news/antenna.shtml
antennas that convert light (which is em wave) direct to electric signal.
If you really want to try to really understand radio in its most basic form you could study the work or marconi and his wireless. I have always been interested in the very basic workings of radio and was re-ignited recently when I read Erik Larson’s, "Thunderstruck".
Or web search Oliver Lodge
web search the coherer (very first radio detector) fascinating stuff
Then ask what is the purpose of em waves in the universe, surely not just to hear ball games, eh?
References :
self proclaimed radio nut….lol