When the boundary is smooth, the reflected sound is directed in a single organized direction. This type of reflection is called what?

When the boundary is smooth, the reflected sound is directed in a single organized direction. This type of reflection is called what?

• A. Specular
• B. Diffuse
• C. Backscatter
• D. Scattering

Answer: (A)

Specular reflection occurs when the boundary is smooth and the waves reflect in a single, organized direction. The surface acts like a mirror, so the angle of incidence equals the angle of reflection, producing a coherent reflected beam rather than energy sprinkled in many directions. If the surface were rough, the waves would scatter diffusely, sending energy in multiple directions. Backscatter describes rays that return toward the source, which is a specific case and not the general single-path reflection described here.

Specular reflection occurs when the boundary is smooth and the waves reflect in a single, organized direction. The surface acts like a mirror, so the angle of incidence equals the angle of reflection, producing a coherent reflected beam rather than energy sprinkled in many directions. If the surface were rough, the waves would scatter diffusely, sending energy in multiple directions. Backscatter describes rays that return toward the source, which is a specific case and not the general single-path reflection described here.