Multiple Choice
The energy output per second of a typical quasar is equal to that emitted by the Sun in 200 years. So, if the luminosity of the Sun is L, what is the luminosity of a typical quasar?
A) 3.2 * 107 L
B) 6.3 * 109 L
C) 1.9 *1011 L
D) 5.3*1012 L
Correct Answer:

Verified
Correct Answer:
Verified
Q101: An astronomer is examining quasars and happens
Q102: The extreme redshifts of quasar spectra are
Q103: The highest recession velocities that have recently
Q104: The central "engine" of an active galaxy
Q105: What is a "peculiar" galaxy?<br>A) a galaxy
Q107: Quasars are<br>A) sources of great energy, very
Q108: The discovery of the peculiar galaxy Cygnus
Q109: Compared with the total output of energy
Q110: The mechanism that appears to generate two
Q111: "It is starlike in appearance, showing very