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Electromagnetic Waves
Infrared Radiation and Greenhouse Effect
1 question from 1 paper, each with its answer.
- question
- 1
- paper
- 1
- of Electromagnetic Waves
- 2.04%
Concepts tested
- Trapping of infrared radiation
All Questions
2002 AIPMT 1 question
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What is the cause of "Green house effect" : -Sunlight (mostly visible radiation) passes through the atmosphere and heats the earth's surface.
The warm earth re-radiates this energy as infrared (heat) radiation of long wavelength.
Greenhouse gases such as $CO_2$, water vapour and methane absorb this infrared radiation and do not let it escape into space, so the earth's surface stays warm.
So the greenhouse effect is caused by infrared rays.