Question

What is an event horizon?​

Answer 1

Answer:

An event horizon is basically the region of space around a black hole from which nothing can escape.

The reason behind the fact that nothing can escape from this horizon is that to escape it will have to travel faster than the speed of light, which is impossible. Therefore it makes the event horizon like this ..

Hope it helps ..

Answer 2

Answer---»»➷

■»» The event horizon is the boundary define the region of space around a black hole from which nothing (not even light) can escape.

□ Outside the event horizon, vesc < c and the object is able to escape.