Which of the following is a principal advantage of CCDs over photographic film?
A) CCDs allow long exposures (e.g., minutes or hours), and film does not.
B) CCDs can record the colors of astronomical objects accurately, while film cannot.
C) CCDs capture a much higher percentage of the incoming photons than does film.
D) Images recorded with CCDs never require any image processing, while images recorded by film often do.
E) CCDs can be attached to modern telescopes more easily than cameras.
Question 2
A hypernova creates:
A) a black hole.
B) a pulsar.
C) a neutron star.
D) short-duration gamma-ray bursts.
E) Both B and C are correct.
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