Star A and Star B have same temperatures, but Star A is more luminous than Star B. Based on this information, which of the following must be the case?
A) Star A is smaller than Star B.
B) Star A is larger than Star B.
C) Star A and Star B have same size.
D) Star A is more massive than Star B.

Question

Quizplus · Accepted Answer

Luminous stars with the same temperature but higher luminosity must be larger in size, as luminosity is related to both temperature and surface area (size).

Star a and Star B Have Same Temperatures, but Star