Introduction to Satellite Communication – 4

4. If the maximum value of electron density is 1.24 x 106 cm^-3 the critical frequency for reflection at vertical incidence will be nearly :

(a) 1 MHz
(b) 5 MHz
(c)  7.5 MHz
(d) 5 MHz

Answer : (d)

Explanation : No answer description available for this question. Let us discuss.

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