alleryWhich radiation is trapped by carbon dioxide and water vapour?
AUltraviolet
BRadio waves
CGamma rays
DInfrared
Answer & Solution
Correct answer: D. Infrared
1. Visible light passes into the atmosphere fairly freely.
2. The warmed surface re-radiates at longer wavelengths.
3. That infrared is trapped by greenhouse gases.
4. So the answer is infrared.
_Source: syllabus Physics, Ch 8 'Electromagnetic Waves'_
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