The wavelength of a radiowave depends on its frequency. You take the speed of light and divide by the frequency, and you will get wavelength.
For instance, a particular radiostation broadcasts at 97.5 MHz (WALK, Long Island, NY). Take the speed of light, 2.99x108 meters per second and divide by 9.75x107 cycles per second(1), and you get 3.07 meters per cycle.
(1) I used cycles per second instead of hertz so that you could see dimensionally how the seconds cancel out.
Use the equation: frequency x wavelength = speed (of the wave). The speed of light is approximately 300,000,000 meters/second. If you divide this speed by the frequency, you get the wavelength in meters.
Wave length = speed of light / frequency
= 3 * 108 / (88 * 1000 * 1000 )
= 34091 meters. (appx)
For any wave, frequency x wavelength = speed of the wave. So, all you have to do is divide the speed of the wave (300,000,000 m/s) by the frequency. Note that MHz means millions of Hz.
88.5 MHz: λ = 11.11 feet.
3,4067m
There isn't really an "average". We presently generate and detect radio waves for the purpose of communication and scientific studies in wavelengths between about 1 millimeter to 5,000 meters (0.04 inch to 3.1 miles).
I am just going through some of the physics myself, but if i understand it properly, the higher the frequency, the shorter the wavelength the less likely it is that the wave will bounce around keeping signals accurate. With the increased accuracy comes the use of gps in navigation for weapons and other sorts of things they don't want impacting in the wrong place. With 4 satelites or 3 satelites and a ground station at that frequency they should be able to pinpoint something down to a few millimeters.
When you talk about the energy of any electromagnetic radiation in terms of itsfrequency, you're talking about the energy of a single photon.8.2 x 1019 J is a bit more than 1,000 times the energy that the Braidwood nucleargenerating station south of Chicago produces in a year.In order for a single photon to have 8.2 x 1019 J of energy, its frequency would have to be8.2 x 1019/Planck's Konstant = 8.2 x 1019/6.62608 x 10-34 = 1.2375 x 1053 Hz.That's about 1034 times the frequency a photon needs in order to be called agamma-ray. At that frequency, the wavelength is about 2.422 x 10-45 meter,and that's something like 10-27 the size of an electron.Perhaps you meant to type 8.2 x 10minus 19 J.The frequency of photon with that energy is8.2 x 10-19/6.62608 x 10-34 = 1.238 x 1015 Hz.and its wavelength is about 242 nanometers.That would be a photon in the mid-range ultraviolet.If you want a beam of light that carries your alleged 8.2 x 10plus 19 J,you just need more of these photons ... like 1038 of them.
Hertz are a measurement of frequency, where meters per second is a measurement of velocity (speed). The two cannot be converted. Hertz is cycles per second, like a radio wave or sound wave. An example is a radio station transmitting on 10.0 MegaHertz (MHz) This indicates the radio wave oscillates 10 Million times per second. Meters per second can be used to measure, for example, the velocity of a car or bullet. Trying to convert frequency to speed would be like trying to convert Miles per hour to liters... it doesn't work.
The frequency changes, as the speed of light c is always constant (299 792 458 meters /s).For example; your favorite radio station frequency might change from 99.8 FM to 95.4 FM if the pitch was lowered, as the speed is unchanging.Or, if the wavelength for the color blue was heightened in pitch over time, the color blue might appear to shift through the rainbow to red, infrared and beyond. In Astronomy, we see this all the time, it's called Redshift. very distant galaxies and stars appear to move away from us so fast, their light reaches us 'squashed together', and their light appears more red the further they are from our telescopes.
1.920 MHz ==> 156.25 meters
Your radio separates the stations according to their frequency (wavelength).
Wavelength = (speed) / (frequency) = (300 million meters/sec) / (1.760 GHz) = 17 centimetersDivide the speed of light (in meters/second) by the frequency (cycles/second). The answer will be in meters.
2.789m is the broadcast wavelength for the radio station 107.5 FM
The station with 107.1 MHz would have the longer wavelength.
Wavelength = Speed of light/frequency Wavelength= 300'000'000/104'900'000 (FM 104.9 is frequency modulation 104.9 MHz) Wavelength=2.86 meters
Frequency = speed/wavelength = 300,000,000/200 = 1500 KHz
Wavelength = (speed of light) / (frequency) = (300,000,000 m/s) / (830,000) = 361.4 meters (rounded)
A station service is defined by power in watts and wavelength or frequency as to where it can be heard. The services could be AM or FM. Various shows are available
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For any wave, frequency x wavelength = speed (of the wave). In this case, convert the kHz to Hz, then divide the speed of light by this frequency. The speed of light should be in meters/second. The answer will be the wavelength in meters.
Frequency = speed/wavelength = 3 x 108 / 3.25 = 92.3 MHz. In the US, that frequency is in the commercial FM broadcast band (88 - 108 MHz). There are many FM stations, in many different cities, on that frequency.