Redshift is observed when:(1 point)

Question

Responses

a distant luminous object travels rapidly towards an observer.
a distant luminous object travels rapidly towards an observer.

a luminous object is stationary relative to an observer.
a luminous object is stationary relative to an observer.

a luminous object is traveling alongside an observer.
a luminous object is traveling alongside an observer.

a distant luminous object travels rapidly away from an observer.
a distant luminous object travels rapidly away from an observer.
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Answer 1

a distant luminous object travels rapidly away from an observer.