Wavelength facts for kids
A wavelength is the length of the shortest repeating part of a "sine wave". All waves can be formed by adding up sine waves. That is, every wave is a total of sine waves, which may be identified by Fourier analysis.
Examples of waves
Waves are everywhere. Examples of waves include:
- electromagnetic spectrum including
- water waves such as ocean surface waves
- earthquake waves
"Length" of a sine wave
The sine wave has a pattern that repeats. The length of this repeating piece of the sine wave is called the wavelength. The wavelength can be found by measuring the length or distance between one peak of a sine wave and the next peak. The wavelength can be found in many other ways too.
There are other properties of waves and sine waves, such as their frequency, amplitude, phase, and speed.
A symbol used for wavelength most often is the Greek letter lambda (λ).
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