Question
The formula that relates the speed, frequency, and wave- length of electromagnetic waves, $v=f \lambda,$ was known before relativity was developed. Relativity has not changed this equation, but it has added a new feature to it. What is that feature?
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This means that the speed of light, represented by $v$ in the equation $v=f \lambda$, could change depending on the frame of reference. Show more…
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