An ultrasound beam travels through a three-layer medium: Me…

An ultrasound beam travels through a three-layer medium: Medium A, Speed = 1540 m/s Medium B, Speed = 2310 m/s Medium C, Speed = 1540 m/s. All interfaces in this layered medium run parallel to one another. The angle of incidence of the ultrasound at the interface between medium A and medium B is 30° from the interface normal. What angle will the ultrasound beam propagate in medium C?

The speed of sound in a medium is determined by its bulk mod…

The speed of sound in a medium is determined by its bulk modulus and density. Medium A has a density of 1.5 g/cm³ and a bulk modulus of 2.7 × 10⁹ Pa. Medium B has a density of 1.0 g/cm³ and a bulk modulus of 2.2 × 10⁹ Pa. What is the ratio of the speed of sound in Medium B to the speed of sound in Medium A?