Q. Which layer of the atmosphere reflects high-frequency radio waves back to Earth, enabling global wireless telecommunication?
✅ Correct Answer: (C)
Ionosphere
Explanation: The Ionosphere is a highly ionized layer of the upper atmosphere (part of the Thermosphere). It contains a high concentration of free ions and electrons that reflect radio waves back to Earth, facilitating long-distance wireless radio transmission.
Explanation by: Mr. Dubey
The Ionosphere is a highly ionized layer of the upper atmosphere (part of the Thermosphere). It contains a high concentration of free ions and electrons that reflect radio waves back to Earth, facilitating long-distance wireless radio transmission.