Question

the wavelength of the spectral lines of distant star appear to have shifted towards higher wavelength then the star is
a. is at rest
b. is moving towards the observer
c. may be moving towards or away from the observer
d. is moving away from the observer ​

Answer 1

Answer:

$\huge \fbox \red{✯AɴSᴡᴇR✯}$

c. may be moving towards or away from the observer