Absorption spectrum of galaxy

Level pending

The above are the absorption spectra of galaxy A and galaxy B, which were observed at our galaxy, as compared to the absorption spectrum of the sun. Which of the following statements is correct?

a) Galaxy A and galaxy B show a red shift of the spectrum.

b) The rate of increase in the distance of galaxy B from the earth is faster than that of galaxy A.

c) The distance of galaxy A from our galaxy is larger than that of galaxy B.


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