A black hole is so named because
A) no light or other electromagnetic radiation can escape from inside it.
B) its electromagnetic radiation is gravitationally redshifted to the infrared, leaving no light in the optical region.
C) it emits a perfect blackbody spectrum.
D) it is colder than the rest of the universe; that is, its effective temperature is less than 3 K.

Question

Quizplus · Accepted Answer

Black holes are named for their property that no light or other forms of electromagnetic radiation can escape from them, making them appear black. This is due to their extremely strong gravitational pull.

A Black Hole Is So Named Because