GyanGramQuestion
Electrically charged particles from space travelling at speeds of several hundred km/sec can severely harm living beings if they reach the surface of the Earth. What prevents them from reaching the surface of the Earth?
PRELIMS 2012 · SCIENCE & TECHNOLOGY
Electrically charged particles from space travelling at speeds of several hundred km/sec…
Attempt this previous-year question. The correct option stays hidden until you choose.
Pick an option to check yourself.
• Correct Answer: A
• Earth’s magnetosphere deflects electrically charged solar wind and cosmic ray particles via Lorentz force, channeling them toward the poles (Aurora Borealis/Australis).
• B is wrong: Ozone layer absorbs UV radiation, not charged particles. C is wrong: Atmospheric moisture is not the primary shield against high-speed charged particles.
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