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ultraviolet light
The ionosphere. To clarify, only the low-frequency radio waves incorrectly called "high-frequency" or "HF" of about 50MHz and below are reflected. "Very High Frequency" VHF signals are not reflected, but go straight off into space. For example, in the "AM" commercial broadcast spectrum, the transmission is reflected back to the Earth and is receivable for great distances, a phenomenon that used to be called "skip". AM signals are in the band of 550KHZ to 1.6 MHz. "FM" stations in the band from 88MHz to 108MHz are only received by "Line of sight" transmissions.
To oversimplify it, the ionosphere either reflect microwaves or allows it to pass through depending upon its frequency, the threshold is approximately 100MHz. Anything below that gets reflected anything higher passes through.
solar and maybe ultraviolet -.-
Electrically charged gas particle, Ionizeed, to help the transmition of radio wave. This is especially important for AM Radio Station
ultraviolet light
Some, not all, radio waves. The reflected ones are the ones used for short-wave radio.
Ozonosphere has concentration of ozone, sufficient to block the ultraviolet radiation from sun. Thats why this layer of atmosphere called ozonosphere. Ionosphere, this layer enables wireless transmission, radio wave transmitted from earth, is reflected back to earth by these ions. The ionosphere is the top most layer of earth atmosphere usually its where the satelites hang around.
The result of a reflected sound wave is obviously an echo.
This is primarily the ionosphere that contains the ions.
The Radio waves are reflected back to Earth in the Ionosphere.
Yes.
decreses
When a sound wave is reflected, you hear an echo.
The ionosphere bends radio waves . . . most go out into space, but a fair number hit the earth far away, and are reflected back up to the ionosphere. Radio operators call this phenomenon, "The skip".
Good conductors like metals, the ionosphere, etc.
yes