ARDMS Ultrasound Physics & Instrumentation Practice Exam | 2024 Questions & Answers | 100% Correct | Verified

Which of the following is defined as only the active time? - Pulse duration The inertia of the medium describes its: - Density Which of the following is determined by the sound source only? - Frequency The prefix "centi" denotes: - Hundredths If the angle of incidence is 40°, what is the angle of transmission at the interface if medium 1 has a propagation speed of 1320 m/s and medium 2 has a propagation speed of 1700 m/s? - >40° The change in the direction of the original sound wave that occurs when sound interacts with two different tissue types that have a different propagation speed is referred to as: - Refraction Refraction is the change in direction of the transmitted sound beam that occurs with oblique incidence and dissimilar propagation speeds.