Q.

The layer of the atmosphere in which Radio Waves are reflected back is called-

A. Ionosphere
B. Troposphere
C. Stratosphere
D. Exosphere
Answer» A. Ionosphere
Explanation: The Radio waves are reflected back to Earth in the Ionosphere which is an electrically charged layer of the upper atmosphere. This process is used to communicate beyond the horizon, atintercontinental distances, mostly in the shortwave frequency bands.
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