calculate the amplitude and phase of the reflection coefficient for a plane wave incident on a sediment with density 1200kg/m^3, sound speed 1700 m/s at an angle of incidence of 70degrees.
answers 1 and 30degress.
I know I can get z1=(rho1 x speed of sound1)/cos(theta incidence) but no idea what I can get out of that and according to my book notes when the speed of sound in the second fluid is faster than the first fluid the magnitude of the reflection coefficient is 1 after the critical angle. but I can't get the correct phase of the reflection coefficient.
Use formula given in your book for calculating a phase difference.
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