Main Question or Discussion Point
What determines the wave length.
The energy content of each photon is directly and rigorously related to that photon's wavelength and frequency. The governing equation is:The Lengths of the different waves and the frequencies are different such as gamma and microwaves being different.i understand how they are different but why
It doesn't matter which "type" of EM radiation you are referring to as all follow the same rules. The seperations between the types of EM Radiation is something we made, not something that actually exists. IE nothing special happens between the visibal and UV ranges, we simply put a line on our chart or graph or whatever and say "Here is where the visible ends and the UV begins."To my knowledge, what determines a wavelength is the frequency (the number of occurances of waves at a given point of time) of a wave. The wavelength is the distance between the troughs and peaks of a wave.
I'd also like to note that the electromagnetic spectrum is made up of both visible, and invisble light, (Radio Waves, to visible light, to gamma rays), so we don't know which type of wave you are speaking of specificly.
"The eternal mystery of the world is its comprehensibility." -Albert Einstein
Just to elaborate on this a little bit:All matter radiates electromagnetic energy. Each substance has allowable energy levels/wavelengths/frequencies at which it can radiate, and specific temperatures at which it can radiate them (its emission spectrum).
From here on, it gets complicated.