Question

what is black hole ?

Answer 1

black hole is a region of spacetime exhibiting such strong gravitational effects that nothing—not even particles and electromagnetic radiation such as light—can escape from inside it. The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole

Answer 2

HEY MATE....

There are two definitions of black hole and that are-

1.a region of space having a gravitational field so intense that no matter or radiation can escape.

2.a place where money or lost items apparently disappear without trace.

HOPE IT HELPS YOU AND MARK AS BRAINLIEST.