Multiple Choice
Variations in the output of quasars within a few hours are an indication:
A) of the rapid rotation of the sources.
B) that these objects are actually binary systems in which we see mutual eclipses.
C) of the relatively small size of the emitting regions.
D) of obscuring gas and dust clouds moving in front of them from our point of view.
Correct Answer:
Verified
Correct Answer:
Verified
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