Question
Astronomy: The Universe Online Practice
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Question
Redshift is observed when:(1 point)
Responses
a luminous object is stationary relative to an observer.
a luminous object is stationary relative to 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 traveling alongside an observer.
a luminous object is traveling alongside an observer.
a distant luminous object travels rapidly towards an observer
Answers
GPT-4o mini
The correct response is:
**a distant luminous object travels rapidly away from an observer.**
Redshift occurs when the wavelength of light from an object is stretched, which typically happens when the object is moving away from the observer.
**a distant luminous object travels rapidly away from an observer.**
Redshift occurs when the wavelength of light from an object is stretched, which typically happens when the object is moving away from the observer.