- #1
Bradracer18
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I can't seem to figure these out guys...maybe I'm missing a few equations too.
1. If light of wavelength 600nm in air enters a medium with index of refraction 1.50, its wavelength in this new medium is...
A. unchanged
B. 900nm
C. 400nm
D. 602nm
---I know that n=c/v...but I don't know how to relate that to find wavelength.
2. A 200m radio telescope is used to investigate sources emitting a 21cm wavelength. The minimum angular separation resolvable for this system is...
A. 0.154deg
B. 0.073deg
C. 0.0026deg
D. 0.0013deg
I have no clue on this one...we haven't even covered this stuff, and he tested us on it...trying to figure out how to do it, before the final(this week). Again, any help is great!
Thanks again,
Brad
1. If light of wavelength 600nm in air enters a medium with index of refraction 1.50, its wavelength in this new medium is...
A. unchanged
B. 900nm
C. 400nm
D. 602nm
---I know that n=c/v...but I don't know how to relate that to find wavelength.
2. A 200m radio telescope is used to investigate sources emitting a 21cm wavelength. The minimum angular separation resolvable for this system is...
A. 0.154deg
B. 0.073deg
C. 0.0026deg
D. 0.0013deg
I have no clue on this one...we haven't even covered this stuff, and he tested us on it...trying to figure out how to do it, before the final(this week). Again, any help is great!
Thanks again,
Brad