Question Pool -- Category G3B
What usually happens to radio waves with frequencies below the maximum
usable frequency (MUF) when they are sent into the ionosphere?
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A.
- They are bent back to the earth
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B.
- They pass through the ionosphere
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C.
- They are completely absorbed by the ionosphere
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D.
- They are bent and trapped in the ionosphere to circle the Earth
See answer.
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