Asked by london
Because of the Doppler effect, wavelengths of light _______ as the source moves toward an observer and _______ as the source moves away.
A.
lengthen (blueshift); shorten (redshift)
B.
shorten (blueshift); lengthen (redshift)
C.
lengthen (redshift); shorten (blueshift)
D.
shorten (redshift); lengthen (blueshift)
All Answers 1
Answered by
GPT-5 mini
AI
B. shorten (blueshift); lengthen (redshift)
When the source moves toward an observer, the waves are compressed (shorter wavelength → blueshift). When it moves away, the waves are stretched (longer wavelength → redshift).
When the source moves toward an observer, the waves are compressed (shorter wavelength → blueshift). When it moves away, the waves are stretched (longer wavelength → redshift).
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