Relativity and Cosmology


Microwave Resonance and Doppler Effect

Authors: Eric Su

A standing wave can be formed in a microwave resonator if the length of the resonator is equal to one half of the wavelength multiplied by an integer. Two observers moving at the same speed will observe the resonator of the same length. They will also observe the same wavelength as the wavelength is proportional to the length of the resonator. If one observer moves in the opposite direction, they will observe an identical wavelength but two different frequencies due to the Doppler effect. Therefore, the apparent speed of the microwave appears to be different for these two observers.

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[v1] 2019-09-08 14:12:19

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