f layer

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Definitions from WordNet

Noun f layer has 1 sense

Appleton layer, F layer, F region - the highest region of the ionosphere (from 90 to 600 miles up) that contains the highest concentration of free electrons and is most useful for long-range radio transmission
--₁ is a kind of region, part
--₁ is a part of ionosphere

Definitions from the Web

F Layer

The F layer refers to a region in the Earth's ionosphere, primarily composed of ionized gas molecules, found at an altitude of approximately 150 to 600 kilometers above the surface of the Earth.

Part of Speech:

Noun

Sense 1: F Layer in Ionosphere

Description:

In the ionosphere, the F layer is the uppermost region and is responsible for reflecting radio signals back to the Earth's surface. It is further divided into two sub-layers, F1 and F2.

Sample Sentence:

The F layer plays a crucial role in long-distance radio communication by bouncing signals back to the Earth.

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