What Is the Event Horizon of a Black Hole

question 135

Multiple Choice

What is the event horizon of a black hole?

• A) the "surface" at which any object passing through it will leave with greater energy than it entered
• B) the "surface" at which all events happen
• C) the infinitesimally small volume at the center of the black hole that contains all of the black hole's mass
• D) the "surface" from inside of which nothing can escape

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