Physics · Black Holes
Which of the following correctly defines the 'event horizon' of a black hole?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The distance at which a black hole completely stops rotating.
- 2The region where a black hole's gravity matches Earth's gravity.
- 3The literal physical solid surface of the collapsed star.
- 4The boundary within which the escape velocity exceeds the speed of light.✓
Correct answer
The boundary within which the escape velocity exceeds the speed of light.
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