Blueshift is observed when(1 point) Responses a distant luminous object travels rapidly towards an observer. a distant luminous object travels rapidly towards an observer. a luminous object travels alongside an observer. a luminous object travels alongside an observer. a distant luminous object travels rapidly away from an observer. a distant luminous object travels rapidly away from an observer. a luminous object is stationary compared to an observer.

Answer 1

a distant luminous object travels rapidly towards an observer.