Question

question 6.
what occurs when a white dwarf in a binary star system if it gains mass beyond the chandrasekhar limit?
type ii supernova
black hole formation
red dwarf formation
type i supernova
neutron star formation

Explanation:

A white dwarf in a binary star system that gains mass beyond the Chandrasekhar limit (about 1.4 times the mass of the Sun) undergoes a Type I Supernova. This is because the electron - degeneracy pressure (which supports the white dwarf) can no longer counteract the gravitational force when the mass exceeds this limit. A Type II Supernova occurs from the core collapse of a massive star (not a white dwarf in this context). Black hole formation from a white - dwarf mass - gain scenario is not typical as the mass limit for black hole formation from such a process (without other factors like rotation etc., which are not indicated here) is much higher. Red dwarfs are low - mass main - sequence stars and not related to this white - dwarf mass - gain situation. Neutron star formation usually occurs from the core collapse of a more massive star (after a Type II Supernova in some cases) rather than a white dwarf crossing the Chandrasekhar limit.

Answer:

Type I Supernova