Question

what is the refraction index in the upper atmosphere(e.g Theromosphere)?

Answer 1

what is the refraction index in the upper atmosphere(e.g Theromosphere)?

❱ Graphs of the variation of refiactive index with altitude for the major air masses are included. Highest values of the index up to a height.

Answer 2

Explanation:

The density of thermosphere is so much lower than at the surface so relative permittivity K ~ 1.

The refractive index is given by :

$n \: = \sqrt{k}$

So the refractive index of thermosphere is nearly 1

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