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In which of the following layer of atmosphere free electrons and ions are present?(a) Troposphere(b) Stratosphere(c) Ionosphere(d) Outer atmosphereI got this question in a job interview.The question is from Radio Wave Propagation topic in section Radio Wave Propagation of Antennas

Answer»

Correct choice is (c) IONOSPHERE

Easiest explanation: In ionosphere ionization OCCURS so there are free electrons, positive and negative ions are ALSO PRESENT. It is at 110- 400km range from earth surface.



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