# Describe the relationship between frequency and wavelength

### What is the relationship between frequency and wavelength in electromagnetic radiation? | Socratic

Relationship between wavelength and frequency . What is the relationship between the wavelength of light and the amount of energy carried by its photons?. As the frequency of a wave increases, the shorter its wavelength is. The relationship between the frequency and wavelength of a wave is. The relationship between frequency and wavelength is covered in any the above mentioned relationship and explain your teacher and the.

What is Frequency Frequency is the number of complete oscillations that a wave undergoes per unit time. It is measured in units of hertz Hz. For sound waves, the frequency is related to the pitch of the sound.

• What is the relationship between frequency and wavelength in electromagnetic radiation?

The higher the frequency, the higher is the pitch. Humans can hear sounds with frequencies between about 20 — Hz. What is the relationship between Wavelength and Frequency You could create a wave with a higher frequency on a rope by wiggling up and down at a faster rate. As you do this, you will notice that the wavelength of the wave becomes shorter.

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Clearly, there is a relationship between wavelength and frequency and now we will try to find out exactly what this relationship is. Period is the time taken for one complete oscillation. Since frequency measures the number of times that a wave oscillates per unit time, it follows that Since a wave undergoes one complete oscillation during one period, all points in the wave return back to the same values after one period.

In other words, during one period, a crest travels to the position that its preceding crest was occupying one period before, and so on. The speed of the wave is the distance that the wave travels per unit time.

Considering that the wave travels a distance of one wavelength during one period, We know that. So we can write the above equation as: That is, the speed of a wave is equal to its frequency multiplied by the wavelength.

This is the relationship between wavelength and frequency. The speed of light has been given the letter c. In fact, as with all mathematical letters it is just a label and any letter would do providing we state what we mean when we use it.

Another way of writing this is: This means a three with eight zeros behind it, i. Again this is just a label, or shorthand, in order to allow us to work quickly with the equation.

Wavelengths are usually measured in metres. Providing we know any two of the three quantities we can find the other one, either directly or by rearranging the equation. The next section solves the equation as it is, and there is a calculator for frequency, wavelength and speed here. Solving the Equation In this example we will consider the frequency of radio waves.

Relationship between wavelength and frequency

Radio waves are just another form of "light", i. Let's say we have a radio with a dial that is only marked in MHz. This is a measurement of frequency and we note that 1 MHz is the same as 1 million hertz the M in MHz stands for " mega ", which means million.

## Relationship Between Wavelength and Frequency

We are told of a radio broadcast we want to hear but we are only given the wavelength of the station and not the frequency. The wavelength we are given is 3.

We know the speed of light and we know the wavelength so it's now an easy matter to plug these numbers into the equation and find the frequency of the radio station: This gives us a frequency of 92 MHz, which is found in the FM range of most domestic radios.