One star has a temperature of 10,000 K and another star has a temperature of 5,000 K. Compared to the cooler star, how much more energy per second will the hotter star radiate from each square meter of its surface? A) 16 times B) 2 times C) 1 × 10¹⁶ times D) 625 times E) 25 times

Question

Quizplus · Accepted Answer

According to the Stefan-Boltzmann Law, the energy radiated per unit area is proportional to the fourth power of the temperature (T^4). Therefore, (10,000/5,000)^4 = 2^4 = 16 times more energy per second.

One Star Has a Temperature of 10,000 K and Another