Answer :

For a black hole observer, one hour is equivalent to 100,000,000 years on Earth.

In contrast to time distant from a black hole, time moves more slowly as you approach closer to one. (According to Einstein's theory, this effect is produced by any big body, including the Earth. Because of how weak Earth's gravity is, the impact of time slowing has been seen and verified by sensitive devices. For instance, if you lived on the summit of Mount Everest, you would age one billionth of a second faster than you do at sea level.) The tremendous slowing of time is seen close to a black hole. Time is stopped from the perspective of an observer outside the black hole. The border of the hole, for instance, would seem to be frozen in time while an item fell into it.

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