about theory of black hole
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Explanation:
The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole. The boundary of the region from which no escape is possible is called the event horizon. ... Black holes of stellar mass are expected to form when very massive stars collapse at the end of their life cycle.
Answer:
A black hole is a region of spacetime where gravity is so strong that nothing—no particles or even electromagnetic radiation such as light—can escape from it. The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole.. The boundary of the region from which no escape is possible is called the event horizon.Although the event horizon has an enormous effect on the fate and circumstances of an object crossing it,
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