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A spectrum of a distant object reveals a sequence of known absorption lines that are all shifted to shorter wavelengths. What can be concluded about the object?
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A spectrum of a distant object reveals a sequence of known absorption lines that are all shifted to shorter wavelengths. What can be concluded about the object?

User DCTID
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Answer: It shows that the object is supposedly moving toward the observer

Explanation: A spectrum typically displays intensity and wavelength which characterises light.

User Imnotanelephant
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