Reflection of sound
Harris, Cyril M. Formerly, Department of Electrical Engineering, Columbia University, New York, New York.
- Additional Reading
The return of sound waves from surfaces on which they are incident. Suppose a sound wave strikes a smooth surface that is large compared to the wavelength of the sound and suppose that the path of this sound wave is represented by a ray, that is, by a line perpendicular to the advancing wavefront. By the law of reflection, the angle of reflection r for this ray equals the angle of incidence i, and the reflected ray lies in the plane of incidence. Figure 1 shows reflection from a plane surface.
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