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If the Surface Temperature of the Earth Is 290 K

Question 51

Multiple Choice

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

Correct Answer:

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