The effects of the medium upon the sound wave are called the

The effects of the medium upon the sound wave are called the

• A. Acoustic propagation properties
• B. Biologic effects
• C. Thermal effects
• D. Optical properties

Answer: (A)

The effects of the medium on a sound wave are described by acoustic propagation properties. These properties cover how the medium changes the wave as it travels—speed of sound, attenuation (energy loss), reflections and scattering at boundaries, refraction, and impedance effects that determine how much energy is transmitted versus reflected. They tell you how the wave behaves inside different tissues or materials. Biologic effects deal with how living tissue responds to the exposure, which is not about the wave’s travel characteristics. Thermal effects relate to heating from energy absorption, and optical properties pertain to light, not sound.

The effects of the medium on a sound wave are described by acoustic propagation properties. These properties cover how the medium changes the wave as it travels—speed of sound, attenuation (energy loss), reflections and scattering at boundaries, refraction, and impedance effects that determine how much energy is transmitted versus reflected. They tell you how the wave behaves inside different tissues or materials.

Biologic effects deal with how living tissue responds to the exposure, which is not about the wave’s travel characteristics. Thermal effects relate to heating from energy absorption, and optical properties pertain to light, not sound.