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What is the refractive index of the ionosphere?

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in Physics – Class 12 by (135k points)
What is the refractive index of the ionosphere?

(a) Zero

(b) More than one

(c) Less than one

(d) One

I have been asked this question at a job interview.

Enquiry is from Communication Systems topic in section Communication Systems of Physics – Class 12

1 Answer

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The correct answer is (c) Less than one

Best explanation: Ionosphere is the uppermost layer of the earth’s atmosphere. The ionosphere has a very low density. The refractive index of the ionosphere is less than one.

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