If all stars are considered to be perfect blackbodies,then the following relationship should hold regarding the energy flux,or energy emitted per unit area,from stars.
A) All stars of the same mass emit the same energy flux.
B) All stars of the same temperature emit the same energy flux.
C) All stars of the same composition (made of exactly the same material) emit the same energy flux.
D) All stars of the same size emit the same energy flux.

Question

Quizplus · Accepted Answer

According to the Stefan-Boltzmann law, the energy flux emitted per unit area (also known as the surface brightness) from a blackbody is proportional to the fourth power of its temperature. Therefore, all stars of the same temperature (regardless of their mass, composition, or size) should emit the same energy flux.

If All Stars Are Considered to Be Perfect Blackbodies,then the Following