Translations:Appendix J: Exercises/14/en

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10. For vertical incidence, the Fresnel reflection coefficient is the ratio of the reflected wave amplitude to the incident wave amplitude. Show that the Fresnel reflection coefficient is the ratio of the change in acoustic impedance to twice the average acoustic impedance. If density is invariant with depth or if density varies much less than velocity, show that the Fresnel reflection coefficient is . If , show that the reflection coefficient is positive. If , show that the reflection coefficient is negative. Are we talking here about a particle velocity or a pressure reflection coefficient?