MUSI 3702 Lecture Notes - Lecture 3: Standing Wave, Rarefaction, Indium
25 May 2016
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Document Summary
Frequency (hz) = number of cycles per second. Wavelength = distance between identical points on a repetitive wave. Frequency = number of cycles of wave each second (hertz or hz) A lambda is the symbol used to represent wavelength. Mechanical waves: waves that require a medium to propagate, because mediums have particles. Vibration inside a tube forms a standing wave. A standing wave is the result of the wave reflecting off the end of the tube (whether closed or open) and interfering with itself. When sound is produced in an instrument by blowing it, only the waves that will fit in the tube resonate, while other frequencies are lost. The longest wave that can fit in the tube is the fundamental, while other waves that fit are overtones. The areas of highest vibration are called antinodes, while areas of least vibration are called nodes. In an open pipe, the ends are antinodes.
