In addition to VHF broadcasting, very high-frequency radio waves are widely used for ship and aircraft communications, disaster prevention and administration radio, police and fire radios, ham radio, and other applications .
Read moreWhat frequencies are harmful to humans?
Scientific evidence suggests that cancer is not only linked to mobile phone radiation and that other factors also may be involved in its development. Most mobile operators use from radiofrequency waves in the range up 300 MHz to 3 GHz that can be harmful for human health (1).
Read moreWhat is frequency in simple words?
In physics, the term frequency refers to the number of waves that pass a fixed point in unit time . It also describes the number of cycles or vibrations undergone during one unit of time by a body in periodic motion.
Read moreWhat is frequency in very short answer?
Frequency describes the number of waves that pass a fixed place in a given amount of time . So if the time it takes for a wave to pass is is 1/2 second, the frequency is 2 per second. If it takes 1/100 of an hour, the frequency is 100 per hour.
Read moreWhat is a frequency in basic science?
In the most general sense, frequency is defined as the number of times an event occurs per unit of time . In physics and chemistry, the term frequency is most often applied to waves, including light, sound, and radio. Frequency is the number of times a point on a wave passes a fixed reference point in one second.3 May 2019
Read moreWhat is frequency and its unit?
The number of periods or cycles per second is called frequency. The SI unit for frequency is the hertz (Hz) . One hertz is the same as one cycle per second.
Read moreWhat is considered a low frequency?
Anything below 200 Hz is considered low frequency and anything above 2,000 Hz is high frequency sound.
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