Hover or tap underlined Spanish terms to see their translation and exam tip.
¿Cuál es la capa de la atmosfera terrestre donde se reflejan las ondas hertzianas del tipo onda media (MF) y onda corta (HF)?Which is the layer of the Earth’s atmosphere where medium-wave (MF) and short-wave (HF) radio waves are reflected?
Show the answer
Correct answer: b) The ionosphere.
Why it is correct
The ionosphere has layers of ionized gas that bounce medium- and high-frequency radio waves back towards Earth, allowing propagation beyond the horizon.
Why the others are not
- a) Invented term.
- c) Invented term.
- d) The outer magnetic region.
How to work it out in the exam
- MF and HF waves bounce off the ionosphere.
Where this question comes from
- Región de Murcia · 2023 · 1ª convocatoria · CY Tipo 1 · question 26 Official paper · Official answer key
Pending instructor review. Machine translation, not reviewed.