1Chapter 17The physics of sound waves is the basis of many fields of research, ranging from physiology, acoustic engineering, aviation, paleontology, military science and biology. In this chapter we introduce fundamental concepts and explore the properties of sound waves. Waves- II17- 1
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2In this course, a sound wave is roughly defined as any longitudinal wave (particles moving along the direction of wave propagation).Sound Waves17-Fig. 17-2Wavefronts: surfaces over which the the oscillations due to the sound wavehave the same value, e.g, at maximum→crest. Rays: directed lines perpendicular to the wavefronts, indicate direction the direction of travel of the wavefrontsSpherical wavesPlane wavesParticle motion