Which radiation is used in greenhoue effect?
Correct answer: B. IR
- A. UV
- B. IR
- C. X rays
- D. gamma rays
Explanation
The greenhouse effect is when some of the infrared radiation (IR) from the Sun passes through the atmosphere, but most is absorbed and re-emitted in all directions by greenhouse gas molecules and clouds. The effect of this is to warm the Earth's surface and in the lower atmosphere.
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About Biological and Medical Uses of Radiation
Radiation in medicine includes X-rays and gamma rays for imaging, radioactive tracers for diagnosis, and controlled radiation for destroying cancerous tissue. The topic also covers CT scans, PET imaging, radiotherapy, sterilisation, half-life and dosage, alongside biological damage, shielding and the need to balance diagnostic or therapeutic benefit against exposure.
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