Which of the following emits large amounts of energy,but photographically appears to be a single point of light,much like a star?
A)an elliptical galaxy
B)a spiral galaxy
C)a double-lobed radio source
D)a quasar

Question

Quizplus · Accepted Answer

Quasars are very distant objects that emit huge amounts of energy, often outshining entire galaxies. However, they appear as a single point of light in photographs because they are so far away. They are believed to be powered by supermassive black holes at the center of galaxies.

Which of the Following Emits Large Amounts of Energy,but Photographically