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Originally Posted by N0B0DY I get the bottom part of your response, neutralino, but if the frequency of oscillations changes the wavelength, how would wave inteference change the frequency? I thought that in variable media, wavelength changes and frequency remains the same.
Also, I've heard that amplitude effects velocity, is this right? |
One thing we need to remember is that
ONLY IN VACUUM (even in an expanding intergalaxic space) the light sped c is a constant and thus strictly correlate frequency and wavelength.
As what you said in a non-vacuum media, wavelength should become longer and thus the frequency should become out-proportionately fewer, so that their product will yield a slower speed. (wavelength x frequency = speed). That means frequency cannot remain the same.
One example is that at least 10 years ago, physicists already able to freeze the speed of a photon to zero. I don't know in those experiments, how are the changes on frequency and wavelength during the frozen period.
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"amplitude effects velocity" seems only when in shockwaves or imperfect waves.
Best Regards. Bottomlander