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| physical object > natural object > particle > boson > carrier boson > photon > radio > MF band |
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| MF band comparison table | ||||
| Subject | is a kind of | has frequency | has wavelength | has definition |
|---|---|---|---|---|
| radio | photon | 3 GHz or less | 10 cm or more | Electromagnetic radiation with the lowest energy and longest wavelength. Unlike visible light, radio waves penetrate dust and can be detected from throughout the Galaxy. |
| MF band | radio | 300 kHz to 3 MHz | 100 m to 1 km |