what is the period of a radio wave ?
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This illustration shows us a simple sign wave. You'll see patterns like it in sound waves, microwaves and, yes, even ocean waves. Like all waves, it has crests or peaks, which are the highest points. It also has troughs, the lowest points. The wavelength of this wave is the distance between one of its peaks and the next peak. Wavelength is represented by the Greek letter lambda.
You may notice that the distance between peaks is the same as the distance between troughs. We can also measure wavelength from one trough to the next. Either way, the wavelength will measure the distance of one wave cycle, or one completion of the wave's repeating up and down pattern.
The wave period is the measure of time it takes for the wave cycle to complete. We usually measure the wave period in seconds and represent it with the letter T
So how can knowing the frequency help us
find a wave period? The higher the frequency of a wave, the lower the wave period. After all, if you're going to fit more cycles into a certain period of time, the cycles need to be shorter.
We can say that the frequency and wave period are inversely proportional to each other, so if the frequency increases, the period decreases, and vice-versa. In other words if the frequency is large, then the period is short and if the frequency is small,then the period is long.
Remember that wavelength and velocity both affect the frequency, so we can also say, the higher the wavelength, the higher the wave period and the lower the velocity, the higher the wave period.'
The wave period is actually the reciprocal of the frequency, which means that any wave will have a wave period of 1 over the wave's frequency. The standard unit for period is in seconds, abbreviated as the letter S.
You may notice that the distance between peaks is the same as the distance between troughs. We can also measure wavelength from one trough to the next. Either way, the wavelength will measure the distance of one wave cycle, or one completion of the wave's repeating up and down pattern.
The wave period is the measure of time it takes for the wave cycle to complete. We usually measure the wave period in seconds and represent it with the letter T
So how can knowing the frequency help us
find a wave period? The higher the frequency of a wave, the lower the wave period. After all, if you're going to fit more cycles into a certain period of time, the cycles need to be shorter.
We can say that the frequency and wave period are inversely proportional to each other, so if the frequency increases, the period decreases, and vice-versa. In other words if the frequency is large, then the period is short and if the frequency is small,then the period is long.
Remember that wavelength and velocity both affect the frequency, so we can also say, the higher the wavelength, the higher the wave period and the lower the velocity, the higher the wave period.'
The wave period is actually the reciprocal of the frequency, which means that any wave will have a wave period of 1 over the wave's frequency. The standard unit for period is in seconds, abbreviated as the letter S.
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