When a star becomes a singularity and has zero volume and infinite density, it is called_______________?
Correct answer: D. Black hole
- A. White dwarf
- B. Blue giant
- C. Wolf-Raynet star
- D. Black hole
Explanation
A black hole forms when a sufficiently massive star collapses so strongly that its escape velocity exceeds the speed of light. The zero-volume, infinite-density point is technically the singularity inside the black hole.
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