A black hole is a region in spacetime exhibiting such strong gravitational effects that nothing—not even particles and electromagnetic radiation such as light—can escape from inside its event horizon. According to general relativity, a black hole can form when a massive star collapses at the end of its life cycle, undergoing gravitational collapse.
Black-hole is
Asked in UPPCS Prelims 2019 · Topic: Astronomy and Astrophysics Basics (Stars: Formation, Evolution, Classification (Basic))
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