MCQ
Beyond which frequency, the ionosphere bends any incident electromagnetic radiation but do not reflect it back towards the earth?
- A30 MHz
- B50 MHz
- C20 MHz
- D40 MHz
✓
Answer
D. 40 MHz
Explanation:
The ionosphere can reflect electromagnetic waves of frequency less than 40 MHz but not of frequency more than 40 MHz .
Explanation:
The ionosphere can reflect electromagnetic waves of frequency less than 40 MHz but not of frequency more than 40 MHz .
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