Multiple Choice
Why must far-infrared astronomy be done from high-flying aircraft or spacecraft?
A) Far-infrared radiation is absorbed low in the Earth's atmosphere.
B) Far-infrared photons are quite energetic.
C) Far-infrared photons have long wavelengths.
D) Far-infrared radiation is reflected from the top of the Earth's atmosphere.
Correct Answer:
Verified
Correct Answer:
Verified
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