In a binary star system,an unseen component is found to have a mass of about 8 solar masses.If this were a normal star,then it would be visible,so it must be a collapsed object.Theoretical considerations tell us that it must be a
A) white dwarf.
B) black hole.
C) neutron star.
D) brown dwarf.

Question

Quizplus · Accepted Answer

The fact that the object is not visible despite having a mass of 8 solar masses suggests that it is very dense and compact, meaning it is likely a collapsed object. A neutron star or a black hole are the only collapsed objects that could have a mass of 8 solar masses or greater. While it is possible for a neutron star to have this mass, it is more likely that it would collapse further into a black hole. Therefore, the best choice is a black hole.

In a Binary Star System,an Unseen Component Is Found to Have