Multiple choice

How many layers do black holes have?

  1. 1

  2. 2

  3. 3

  4. 4
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Within the simplified framework of this question set, black holes are said to have three layers. However, in actual physics, the structure varies by type: non-rotating black holes have an event horizon and singularity, while rotating (Kerr) black holes have an outer event horizon, inner event horizon, ergosphere, and ring singularity.

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