As a white dwarf star gradually cools, its radius stays approximately constant.What is happening to the white dwarf's luminosity?
A) It stays the same.
B) It increases.
C) It increases and then decreases periodically.
D) It decreases.
E) You can't tell from the information given.

Question

Quizplus · Accepted Answer

As a white dwarf cools, its temperature decreases, leading to a decrease in luminosity since luminosity is directly related to temperature in stars.

As a White Dwarf Star Gradually Cools, Its Radius Stays