Solar Sail/ Mirror Redshift & Blueshift

  • #1
Hi all,

I was hoping you could help me out with this one.

Im trying to calculate the redshift or blueshift of a photon that strikes a mirror and reflects.

I know E=pc, and that 2p is the momentum transfer. I also know that kinetic energy is 2p/M (of the mirror).
However, this says that red/blushift isnt dependent on mirror velocity. Surely thats not right?!? If the mirror is moving faster towards the oncoming light, surely the blueshift is greater.

Please clarify
 

Answers and Replies

  • #2
I got it, it's Doppler shift. Never mind
 

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