Q:

When ultrasound strikes the boundary between two different body tissues, the amount of reflection that will occur is proportional to the difference in what?

waelhammad
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2022-10-21
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When ultrasound strikes the boundary between two different body tissues, the amount of reflection that will occur is proportional to the difference in what?

  1. the speed of sound in the tissues.
  2. the density of the two tissues.
  3. elasticity in the tissues.
  4. impedance between the two tissues.
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waelhammad
2022-10-21
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D: The impedance depends on the speed and density. Speed depends on the elasticity of the medium. So impedance is the more complete answer.

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