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Published byDwight Austin Modified over 6 years ago
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Guitar D string vibration is creating a longitudinal wave in fundamental (shades of gray) and first harmonic (shades of red) frequencies. The fundamental frequency longitudinal wave is represented below by a transverse wave of the same frequency. The red dotted wave is a first harmonic wave with half the period and twice the frequency of the fundamental wave. Fundamental period is 2.5 of a millisecond; fundamental frequency is 400 Hz (0.4 kilohertz [kHz]); first harmonic frequency is 0.8 kHz. Source: PHYSICS OF SOUND, ULTRASOUND, AND DOPPLER EFFECT AND ITS DIAGNOSTIC UTILITY, Critical Care Ultrasonography, 2e Citation: Levitov AB, Mayo PH, Slonim AD. Critical Care Ultrasonography, 2e; 2015 Available at: Accessed: October 27, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved
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