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White raven [17]
3 years ago
8

Astronomers initially had difficulty identifying the emission lines in quasar spectra at optical wavelengths because

Physics
1 answer:
Rus_ich [418]3 years ago
6 0
No one expected violet & ultraviolet spectral lines to be shifted towards the red.
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What is lever means,types of lever.. <br>will give brainles​
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A lever is a rigid bar which moves freely about a fixed point called fulcrum....

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