The escape velocity at the event horizon around a black hole is
A) infinite.
B) equal to the speed of light.
C) much less than the speed of light.
D) just under the speed of light.

Question

Quizplus · Accepted Answer

The escape velocity at the event horizon of a black hole is equal to the speed of light. This is why not even light can escape from within the event horizon, leading to the term "black hole."

The Escape Velocity at the Event Horizon Around a Black