single-frequency plane wave
Quick Summary
A single-frequency plane wave is a theoretical model used in physics to understand wave properties, particularly sound. It describes a wave that propagates as a flat plane, not a sphere, and has a consistent frequency, perceived as a pure tone, like that from a tuning fork.1
Key characteristics include:
* Wavelength ((\lambda)): The spatial distance over which the wave's shape repeats.1
* Period ((T)): The time it takes for one full wavelength to pass a point.1
* Frequency ((f)): The number of wavelengths passing a point per second, measured in hertz (Hz). Frequency is the reciprocal of the period ((f = 1/T)).12
The amplitude ((A)) of the wave, representing the pressure variation from atmospheric pressure, determines its intensity and perceived loudness. While not perfectly representative of real-world sound, this model simplifies the study of wave behavior.314
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