If the Sun's core suddenly shrank a little bit, what would happen in the Sun?
A) The core would heat up, fusion rates would increase, the core would re-expand.
B) The core would cool off and continue to shrink as its density increased.
C) The density of the core would decrease, causing the core to cool off and expand.
D) The core would heat up, causing it to radiate so much energy that it would shrink even more.

Question

Quizplus · Accepted Answer

If the Sun's core shrank a little bit, it would get hotter and the fusion rates would increase. This would lead to an increase in energy output, causing the core to re-expand again. This is because the increase in temperature would cause the pressure to increase, which would then push the core back out to its previous size.

If the Sun's Core Suddenly Shrank a Little Bit, What