Understanding E/M Waves and Frequency Changes in Different Mediums

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SUMMARY

When an electromagnetic (EM) wave transitions from one medium to another, such as from air to water, the frequency remains constant while the wavelength decreases. This phenomenon occurs because the electric and magnetic fields of the wave must maintain continuity at the boundary between the two media. If the frequency were to change, it would disrupt the continuity of these fields, leading to inconsistencies at the interface.

PREREQUISITES
  • Understanding of electromagnetic wave properties
  • Knowledge of wave behavior in different mediums
  • Familiarity with the concepts of frequency and wavelength
  • Basic principles of wave continuity at boundaries
NEXT STEPS
  • Research the mathematical relationship between frequency and wavelength in EM waves
  • Explore the effects of different mediums on wave propagation
  • Learn about the principles of wave continuity and boundary conditions
  • Investigate applications of EM wave behavior in optics and telecommunications
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Students of physics, educators teaching wave mechanics, and professionals in optics and telecommunications will benefit from this discussion on electromagnetic wave behavior in different mediums.

dervast
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Hi i know when i electromagnietic wave changes medium (for example it goes from air to the water) the waveklength don't cchange but the frequency.. How is this explained? Thx a lot
 
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Its actually the other way. When EM wave enters from one medium to another . its wavelength decreases but frequency remains the same.
 
And the reason why the frequency has to be the same is that the electric and magnetic fields have to be continuous functions of position. That is, the "ends" of the waves on the two sides of the boundary have to match up. If the frequency were different in the two media, this wouldn't be true most of the time.
 

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