Ultrasound energy is absorbed by

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Multiple Choice

Ultrasound energy is absorbed by

Explanation:
Ultrasound energy absorbed by tissue is converted into heat energy as the sound attenuates. This conversion of acoustic energy into another form is what absorption means in this context. The other terms describe different interactions: reflection is energy bouncing back at boundaries, refraction is bending of the beam when it enters a different medium, and diffusion (or scattering) is energy spreading in many directions. So the idea that the energy is converted (absorbed) to heat best captures what happens during absorption.

Ultrasound energy absorbed by tissue is converted into heat energy as the sound attenuates. This conversion of acoustic energy into another form is what absorption means in this context. The other terms describe different interactions: reflection is energy bouncing back at boundaries, refraction is bending of the beam when it enters a different medium, and diffusion (or scattering) is energy spreading in many directions. So the idea that the energy is converted (absorbed) to heat best captures what happens during absorption.

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