Reflection: The return of all or part of a sound beam when it encounters the boundary between two media. The most important rule of reflection is that the angle of incidence is equal to the angle of reflection, where both these angles are measured relative to an imaginary line which is perpendicular to the boundary.

 

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Reflection: The return of all or part of a sound beam when it encounters the boundary between two media. The most important rule of reflection is that the angle of incidence is equal to the angle of ref . . . View Full Definition

Reflections: Rays of light which strike a surface and bounce back again. Specular reflection occurs on even, polished surfaces: diffuse reflection occurs on uneven surfaces, when light scatters.

Reflection Plotter: An attachment fitted to a ppi which provides a plotting surface permitting radar plotting without parallax errors. Any mark made on the plotting surface will be reflected on the radarscope d . . . View Full Definition

Primary Radar: Primary radar systems receive reflections of their own transmitted signals as returned signals from the target.