Electromagnetic radiation

  • #1
ghadir-jafari
10
0
does the electromagnetic spectrum limited?
whate is the theoretical answers for limitation of the spectrum?
 

Answers and Replies

  • #2
maverick_starstrider
1,115
6
In a sense I'd say it is on the lower end because i'd say the lowest achievable frequency is that which originates from the blackbody radiation at absolute zero. As for the upper limit I see no reason why there should be a limit.
 
  • #3
Andy Resnick
Science Advisor
Education Advisor
Insights Author
7,725
2,629
The lowest frequency is given by the size of the universe- 1/2 a wavelength is the size of the universe- and the highest frequency is given by v = E/h, where E is the Planck energy:

http://en.wikipedia.org/wiki/Planck_energy

frequencies higher than that can't be reasonably explained by current physical theory.
 
  • #4
lightingbolt1
1
0
Can electromagnetic energy be pushed into a home as a weapon? Like a bolt of electricity using a linear amplifier. Would it be similar to the ADT or ADS weapon systems used by law enforcement or the military? I've been attacked with something here in Long Beach, Ca and its a shockwave with electricity.
 

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