If the surface temperature of the Earth is 290 K and that of the Sun is 6 000 K,assuming the same emissivities,what is the ratio of the energy radiated per square meter of the Earth to that of the Sun? A)0.48 B)2.3 × 10^-3 C)6.4 × 10^-5 D)5.5 × 10^-6

Question

Quizplus · Accepted Answer

The energy radiated per square meter is proportional to the fourth power of the temperature. So, the ratio of the energy radiated per square meter of the Earth to that of the Sun is:(290 K / 6000 K)^4 = 6.4 × 10^-5

If the Surface Temperature of the Earth Is 290 K