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Olegator [25]
3 years ago
9

When a star is moving away from us, the observed frequencies of light are lower than the actual frequencies. this illustration o

f the doppler effect is called?
Physics
1 answer:
makvit [3.9K]3 years ago
8 0
That's called the "red shift" of the star's spectrum, because red is the lowest frequency/longest wavelength in visible light.
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