Solving Hard Quantum Q Homework - Get Tips & Solutions

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The discussion revolves around solving a quantum mechanics homework problem, specifically determining the phase difference of beams at a detector. The user expresses uncertainty about how to begin the solution and seeks hints or guidance. They have made progress on the problem but are stuck on the phase difference calculation. The phases of the two waves are identified as (kx - kvt) and (k'x - k'v't). Clarification on how to calculate the phase difference is requested to complete the homework.
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Homework Statement



see attached :)

Homework Equations





The Attempt at a Solution


Not sure how to start..! Any hints? Thanks!
 

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anyone..?
 
Ok I've done all of this question now apart from the bit where it asks us to determine the phase difference of the beams at the detector. How do i do this bit?

I know that the phase of the first wave is (kx - kvt) and the phase of the second is (k'x - k'v't)
 

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