Multiple Choice
When astronomers view a distant quasar with highly redshifted emission lines in its spectrum, this wavelength shift is a
A) Doppler shift.
B) gravitational redshift.
C) cosmological redshift.
D) Doppler shift or a gravitational redshift or a cosmological redshift-they are one and the same thing.
Correct Answer:
Verified
Correct Answer:
Verified
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