How does a black hole form from a massive star?
A) During a supernova, if a star is massive enough for its gravity to overcome neutron degeneracy pressure in the core, the core will collapse to a black hole.
B) Any star that is more massive than 8 solar masses will undergo a supernova explosion and leave behind a black hole remnant.
C) If enough mass is accreted by a white dwarf star that it exceeds the 1.4 solar mass limit, it will undergo a supernova explosion and leave behind a black-hole remnant.
D) If enough mass is accreted by a neutron star, it will undergo a supernova explosion and leave behind a black-hole remnant.
E) A black hole forms when two massive main-sequence stars collide.

Question

Quizplus · Accepted Answer

When a massive star undergoes a supernova explosion, the core of the star can collapse to form a black hole if its gravity is strong enough to overcome the neutron degeneracy pressure. This collapse results in a singularity, a region of space where the laws of physics break down, surrounded by an event horizon, beyond which nothing can escape the gravitational pull of the black hole.

How Does a Black Hole Form from a Massive Star