Question

what is Black hole ....? & what happens in Black hole​

Answer 1

A black hole is a region of spacetime exhibiting gravitational acceleration so strong that nothing—no particles or even electromagnetic radiation such as light—can escape from it. ... This temperature is on the order of billionths of a kelvin for black holes of stellar mass, making it essentially impossible to observe.

A black hole is a place in space where gravity pulls so much that even light can not get out. The gravity is so strong because matter has been squeezed into a tiny space. This can happen when a star is dying. Because no light can get out, people can't see black holes.

Answer 2

A black hole is present in space....it has strong gravity..... anybody near it can't escape from it...!!!!