Module 39: The Relativistic Doppler Effect - Problem 2
I derived the Relativistic Doppler Shift formula for light waves, and noted that the same formula has to apply to rates associated with a series of light flashes. Here, you’ll work that out explicitly. To that end, imagine that George is firing photons toward Gracie at a rate of $N$ photons per second. Imagine that Gracie is running toward George at a speed $v$.
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From George's perspective, what is the distance between each of the photons that are shooting toward Gracie?CorrectIncorrect
From George's perspective, what is the time interval between Gracie receiving one photon and the next?CorrectIncorrect
From George's perspective, how many photons does Gracie receive per second?CorrectIncorrect
From Gracie's perspective, how many photons does George send out per second?CorrectIncorrect
From Gracie's perspective, what is the distance between each successive photon that George fires?CorrectIncorrect
According to Gracie what is the time interval between the arrival of successive photons?CorrectIncorrect
According to Gracie, then, how many photons does she receive per second?CorrectIncorrect