

MCQOPTIONS
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1. |
Long range radio transmission is possible when the radio waves are reflected from the ionosphere. For this to happen the frequency of the radio waves must be in the range: |
A. | \[80-150\,MHz\] |
B. | \[8-25MHz\] |
C. | \[1-3\,MHz\] |
D. | \[150-1500\,kHz\] |
Answer» C. \[1-3\,MHz\] | |