Geometrical acoustics does not take into account such important wave effects as diffraction.
2.
The principal task of geometrical acoustics is to determine the trajectories of sound rays.
3.
Geometrical acoustics is the approximate theory, which is valid in the limiting case of very small acoustic wavelengths, or very high frequencies.
4.
The methods of geometrical acoustics have a limited range of applicability because the ray concept itself is only valid for those cases where the amplitude and direction of a wave undergo little changes over distances of the order of wavelength of a sound wave.
5.
"' Geometrical acoustics "'or "'ray acoustics "'is a branch of acoustics that studies propagation of sound on the basis of the concept of rays considered as lines along which the acoustic energy is transported.
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