Radio frequency (RF) is a measurement representing the oscillation rate of electromagnetic radiation spectrum, or electromagnetic radio waves, from frequencies ranging from 300 gigahertz (GHz) to as low as 9 kilohertz (kHz). With the use of antennas and transmitters, an RF field can be used for...
Radio waves are electromagnetic waves whose wavelength is more than the infrared rays. Therefore, the frequency of the radio waves is less than that of the infra-red rays. Wave Travel: The wavelength of a wave, {eq}\lambda {/eq} (m), is the distance...
A radio wave has a frequency of {eq}7.9 \times 10^{10} {/eq} Hz. What is the energy (in J) of one photon of this radiation? Photon and its Energy Photons are descrete units or packets of energy of an electromagnetic wave. Each photon is...
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What is frequency? Electrical Alternating current (ac) frequency is the number of cycles per second in an ac sine wave. Frequency is the rate at which current changes direction per second. It is measured in hertz (Hz), an international unit of measure where 1 hertz is equal to 1 cycle ...
These frequencies form part of the electromagnetic spectrum that is utilized for various wireless communication technologies. Radio Waves and Propagation Radio waves, a type of electromagnetic wave, are characterized by the frequency and wavelength. The wavelength gets shorter as the frequency increases. ...
Next, we have the period, which is the time, in seconds, that it takes for one full wave cycle to pass a particular point. We can think of the period as the number of seconds per cycle. The reciprocal of the period is called the frequency. The frequency, in Hertz, is t...
What is the wavelength of radiation of 1.50 x 1013 Hz? What is the frequency of radiation (in Hz) with a wavelength of 440 nm? What is the frequency of radiation whose wavelength is 0.78 nm ? A radio wave has a frequency of 8.6 x 108 s-1. What is the wavelength of this...
Ah, another interesting sound is the “tweek.”Tweeks are the result of VLF waves that have traveled a long distance through the waveguides.They produce a chirpy sound because the higher–frequency parts of the wave reach the radio receiver before the lower–frequency parts.The entire wave is ...
Radio frequency is an alternating electrical current with certain properties that allow it to be broadcast from an antenna. Many...