€ > C bel. castlelearning. com/Review/CLO/Student/Assignment/Q uestions?assignmentID-8047826&t id=15977018 The Earth in Space: Stars and Galaxies 6/2-6/7
The diagram below represents the spectral lines from the light emitted from a mixture of two gaseous elements in a laboratory on Earth
Blue
Red
If the same two elements were detected in a distant star that was moving away from Earth, how would the spectral lines appear?
1
2
The entire set of spectral lines would shift toward the red end.
The entire set of spectral lines would shift toward the blue end.
The spectral lines of the shorter wavelengths would move closer together.
The spectral lines of the longer wavelengths would move closer together.
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