Multiple Choice
Today we know that what all quasars have in common is that they appear to be small sources of energy with
A) strong radio emission showing regular pulses
B) no lines in the spectrum at all
C) redshifts that indicate they are far away
D) tremendous proper motion (apparent motion across the sky)
E) gravitational lenses clearly visible around them
Correct Answer:
Verified
Correct Answer:
Verified
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