Question

if black hole come close to solar system so what will happen​

Answer 1

Answer:

full universe will

go into black hole

Answer 2

Answer:

If a black hole like Cygnus X-1 were to stray near the Solar System, within a light-year or so, its gravity would cause chaos. The orbits of the outer planets and comets would be significantly and possibly disastrously altered, and this would in turn threaten the orbits of the inner planets and even the Sun.

Hope it helps