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9 August, 02:12

What term is used to describe the change in direction of sound that encounters an acoustic interface?

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Answers (2)
  1. 9 August, 03:25
    0
    When a wave reaches the boundary between one medium another medium, a portion of the wave undergoes reflection and a portion of the wave undergoes transmission across the boundaryr:

    Explanation:

    When sound changes mediums (enters a different material) at an angle other that 90 degrees, it is bent from its original direction. This change in angle of direction is called refraction. Because of the angle, part of the wave enters the new medium first and changes speed
  2. 9 August, 05:25
    0
    Refraction

    Explanation:

    A change in direction of a wave due to a change in its speed. When an ultrasonic wave passes through an interface between two materials at an oblique angle, and the materials have different indices of refraction, both reflected and refracted waves are produced.
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