Which of the following quantities is equal to the energy per second generated by the Sun's nuclear reactions?
A) The temperature of the Sun's core
B) The temperature at the Sun's photosphere
C) The force of gravity holding the Sun together
D) The luminosity of the Sun's photosphere

Question

Quizplus · Accepted Answer

The luminosity of the Sun's photosphere is the amount of energy emitted by the Sun per second. This includes the energy generated by nuclear reactions in the core, which is then transported to the surface via convection and radiation. Therefore, the luminosity of the Sun's photosphere is equal to the energy per second generated by the Sun's nuclear reactions.

Which of the Following Quantities Is Equal to the Energy