Smallest and largest electromagnetic frequencies

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SUMMARY

The discussion centers on the smallest and largest electromagnetic frequencies, emphasizing that there are no fundamental physics laws defining these limits. It is established that while creating extremely high or low frequency electromagnetic radiation is challenging, this is due to instrumentation limitations rather than theoretical constraints. The conversation also touches on the effects of relativistic speeds on frequency perception, particularly when approaching or receding from a light source, and clarifies misconceptions regarding maximum light frequencies as suggested by Einstein's theories.

PREREQUISITES
  • Understanding of electromagnetic wave theory
  • Familiarity with the principles of relativity
  • Knowledge of frequency modulation concepts
  • Basic grasp of instrumentation used in electromagnetic radiation measurement
NEXT STEPS
  • Research the implications of relativistic Doppler effect on electromagnetic frequencies
  • Explore instrumentation techniques for generating high-frequency electromagnetic radiation
  • Study the principles of frequency modulation and its applications in communication
  • Investigate the limits of electromagnetic spectrum and its practical applications
USEFUL FOR

Physicists, engineers, and students interested in electromagnetic theory, relativity, and the practical applications of frequency modulation in technology.

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What is the smallest electromagnetic frequency and the largest possible electromagnetic frequency? Also, can small frequencies ride on larger frequencies?

Ergo. You are traveling 99.7 the speed of light away from something shooting a blue light light at you. What frequency is it? Once it erodes to the largest frequency do you see sub frequencies on it if you go faster... say 99.997% the speed of light? Now go reverse. What is the smallest frequency it becomes? If you go faster do you see it riding on a larger frequency?

Is there a physics law that defines the smallest and largest possible frequency of light/EM wave?
 
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Is there a physics law that defines the smallest and largest possible frequency of light/EM wave?
No. Creating extremely high frequency or extremely low frequency EM radiation may be difficult, but this is because of instrumentation limitation, nothing fundamental.
 
Oh thanks, because I read in a book on Einstein there was a maximum frequency of light. But that seems like it would mean that simply going away from something fast enough you basically break realativity since light frequencies can't get bigger than that frequency... Same goes with smallest frequency, but you go towards it.
 

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