The radial distance to the event horizon from the singularity of a black hole is called
A) the Roche limit.
B) the Schwarzschild radius.
C) the Hubble unit.
D) none of the above.

Question

Quizplus · Accepted Answer

The Schwarzschild radius is the radial distance to the event horizon from the singularity of a black hole, defining the boundary within which the gravitational pull is so strong that not even light can escape.

The Radial Distance to the Event Horizon from the Singularity