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Mathematics 4 Online
OpenStudy (anonymous):

2 photons travel in opposite directions, what is the speed of one photon relative to the other in a vacuum?

OpenStudy (anonymous):

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OpenStudy (anonymous):

what the heck is a photon?

OpenStudy (anonymous):

in laymen terms, a photon is a particle of light, its also a wave

OpenStudy (anonymous):

Both travel at c.

OpenStudy (anonymous):

C is right, I think... also interesting to think of the apparent speed of one photon from the perspective of the other

OpenStudy (anonymous):

... in every reference frame.

OpenStudy (anonymous):

hm... gremlins in the web server... my post above was from 10-15 min ago, just appeared now. odd..

OpenStudy (anonymous):

I agree it's C in every frame, I just think it's interesting :)

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