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5 Cards in this Set

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  • Back
What means attenuation?
Decrease in intensity and amplitude when the sound travel through a medium
Which are the process that affect attenuation
apsortions
reflection
scattering
beam divergence
What means impedance
the resistance that a medium present to sound travel
The impedance formula and the unit is
Z= velocity x density
Rayls
Explain the refraction process
Is a change in direction when a sound pass from one medium to another. Occur with oblique incidence and different velocity