Question

Massive stars have lower absolute brightness true or false

Answer 1

The answer should be false, because mass should not have to do with how bright a star is

Answer 2

The brightness of a star is measured as luminosity. It is a simple factor of energy emitted by a star in a unit time or generally per second.

the following factors may affect the brightness of a star

a) Temperature of star

b) size of star: larger the size more the brightness

c) distance from observer : closer the star brighter it will appear

so massive stars or stars with large mass have lower absolute brightness will be false.