Question

The refractive index of the ionosphere

a) Increases as we go from the lower to upper layers of the ionosphere

b) Decreases as we go from the lower to upper layers of the ionosphere

c) Remains the same throughout the ionosphere

d) Is equal to unity​

Answer 1

Answer:

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Answer 2

Answer:

a) Increases as we go from the lower to upper layers of the ionosphere