Where is the event horizon of a black hole located?

Question

Quizplus · Accepted Answer

The event horizon of a black hole is defined as the boundary beyond which no light or matter can escape from the gravitational pull of the black hole. This boundary is located at the Schwarzschild radius, which is a distance from the center of the black hole where the escape velocity is equal to the speed of light. Therefore, choice D is the correct answer. The other options are incorrect because the position of maximum X-ray emission and the outer surface of the ergoregion are not related to the event horizon, and the singularity is a point of infinite density at the center of the black hole, which is not a location of the event horizon.

Where Is the Event Horizon of a Black Hole Located