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Electromagnetic Waves question

2002 · Q138
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Electromagnetic Waves question

2002 · Q138

NEETPhysicsElectromagnetic WavesMCQ+4 / −1
What is the cause of Green house effect ?
  1. A
    infra-red rays
  2. B
    ultra violet rays
  3. C
    X-rays
  4. D
    radio waves.
View written solutionFree

Correct answer: A

Infrared ray is the cause of Green House effect. The glass transmits visible light while infrared rays are absorbed by plants. Then it emits long infrared rays, which are reflected back by glass.

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