This question has Statement-1 and Statement-2. Of the four choices given after the Statements, choose the one that best describes the two Statements. Statement-1: Short wave transmission is achieved d

Question

This question has Statement-1 and Statement-2. Of the four choices given after the Statements, choose the one that best describes the two Statements. Statement-1: Short wave transmission is achieved due to the total internal reflection of the e-m wave from an appropriate height in the ionosphere. Statement-2: Refractive index of a plasma is independent of the frequency of e-m waves.

Options:

Answer:

A

Solution:

Effective refractive index of the ionosphere $n_{eff} = n_{0} [1 - \frac{80.5 N}{f ^{2}}]^{1/2}$ where $f$ is the frequency of em waves

TestHub · Accepted Answer

Effective refractive index of the ionosphere n eff ​ = n 0 ​ [ 1 − f 2 80.5 N ​ ] 1/2 where f is the frequency of em waves

Physics - Geometrical Optics Question with Solution | TestHub

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