- #1
mystery_witch
- 6
- 0
Homework Statement
How do you show that in spectra taken along the equator of a rotating rigid sphere the spectral lines are tilted but straight?
Homework Equations
There were no equations given in the problem, so I guess you can use whatever equations you know.
The Attempt at a Solution
From the Doppler equation
[tex]\lambda[/tex]=[tex]\lambda_{0}[/tex][tex]\frac{\sqrt{1+\frac{v}{c}}}{\sqrt{1-\frac{v}{c}}}[/tex]
you can see that you get a different result depending on if the velocity is towards us or away from us. I think this is enough to show that the lines would be tilted, but I'm not sure.
This is as far as I've come. I don't have any idea how to do the rest.