Q75
Consider the following statements about the maximum usable frequency for radio communication between two specified points by reflection from an ionosphere layer: 1. It is equal to the critical frequency 2. It is more than the critical frequency 3. It depends upon the distance between the two points 4. It depends upon the height of the ionosphere layer Of these statements
A.
1 and 4 are corrects
B.
1, 3 and 4 are corrects
C.
2 and 3 are correct
D.
2, 3 and 4 are correct
AnswerAnswer: Option D
Solution
Answer: Option D
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