The transfer of acoustic energy into heat within tissue is known as which phenomenon?

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Multiple Choice

The transfer of acoustic energy into heat within tissue is known as which phenomenon?

Explanation:
Absorption is the transfer of acoustic energy into heat within tissue. As ultrasound travels, some of the energy is absorbed by tissue components, causing molecular interactions and friction that raise the local temperature. This heating is the key effect behind tissue attenuation and is the primary way energy is converted into heat. Scattering redirects energy in various directions without inherently heating, refraction bends the wave path at interfaces due to speed changes, and diffusion isn’t the relevant concept for how ultrasound interacts with tissue. So the conversion of acoustic energy into heat is absorption.

Absorption is the transfer of acoustic energy into heat within tissue. As ultrasound travels, some of the energy is absorbed by tissue components, causing molecular interactions and friction that raise the local temperature. This heating is the key effect behind tissue attenuation and is the primary way energy is converted into heat. Scattering redirects energy in various directions without inherently heating, refraction bends the wave path at interfaces due to speed changes, and diffusion isn’t the relevant concept for how ultrasound interacts with tissue. So the conversion of acoustic energy into heat is absorption.

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