Multiple Choice
The spectra of most galaxies show redshifts.This means that their spectral lines
A) always are in the red part of the visible spectrum.
B) have wavelengths that are longer than normal.
C) have wavelengths that are shorter than normal.
D) have a higher intensity in the red part of the spectrum.
E) have normal wavelengths,but absorption of light makes them appear red.
Correct Answer:
Verified
Correct Answer:
Verified
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