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Which of the following is the nearest Ionospheric layer to the earth surface?

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Which of the following is the nearest Ionospheric layer to the earth surface?

(a) D layer

(b) E layer

(c) F1 layer

(d) F2 layer

I got this question in final exam.

Question is from Radio Wave Propagation in section Radio Wave Propagation of Antennas

1 Answer

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Best answer
The correct choice is (a) D layer

Easy explanation: D layer is present at 70km from the earth surface and is the nearest layer to earth surface. E layer lies at 110km, f1 layer at 220km and F2 at 250 to 400km. Based on the density of ions different layers are present in this layer.

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