Question

Question 1 1 pts Which one of the following statement is correct about the stars with mass equal to 10% of the solar mass? they are the most common type of Cepheid variable stars objects of 10% of the solar mass cannot be stars all stars of that mass, no matter when they were formed, are still on the main sequence of HR diagram. at the end of their evolution they will become neutron stars at the end of their evolution they will become carbon-oxygen white dwarfs Question 2 1 pts What stops white dwarfs from collapsing even further and making an object of smaller radius? quantum degeneracy pressure negative feedback of the nuclear reactions in their core O radiation pressure white dwarfs keep slowly collapsing as they cool, and they all eventually turn into stellar mass black hole thermodynamic pressure

Answer 1

Answer 1:- Sun is a low mass star.and mass of all the other star is measured in term of mass of sun.so there should be a large amount of massive cloud to form a star(determined by jean's criteria).otherwise it is not possible to form a star.

So an object of 10% mass of sun can not form a star.

So second option is correct.

Answer 2:- white dwarfs are made up of degenerate electron gas. So this gas produces pressure against the gravitational collapse of the white dwarf due to its own gravity.

So this presaure stops the white dwarf from callapsing due to its own gravity any further.

So first option is correct.

"If any doubt, leave a comment."