Question

6) If a plane wave is reflected from the ocean floor with a 15 dB reduction in amplitude angle of incidence of 30°, what are the possible values of the specific fluid bottom material if it has a speed of sound of 1666m/s? at an acoustic impedance of the 7) Calculate the amplitude and phase of the reflection coefficient for a plane wave incident on a sediment with density 1200 kg/m', sound speed 1700 m/s at an angle of incidence of 70°.

Answer 1

6.The possible values of specific acoustic impedance of the fluid bottom material if it has a speed of 1666m/s are 1.011X10^6 and 2.07X10^6

7. The amplitude for a plane wave incident on a sediment is 1 and the phase is 30 degrees