question: "incident" and "reflected" are two types of what?
distractor3: collisions
distractor1: cells
distractor2: mirrors
correct_answer: rays
support: In the Figure below , you can see how both types of reflection occur. Waves of light are represented by arrows called rays. Rays that strike the surface are referred to as incident rays, and rays that reflect off the surface are known as reflected rays. In regular reflection, all the rays are reflected in the same direction. This explains why regular reflection forms a clear image. In diffuse reflection, the rays are reflected in many different directions. This is why diffuse reflection forms, at best, a blurry image. You can see animations of both types of reflection at this URL: http://toolboxes. flexiblelearning. net. au/demosites/series5/508/Laboratory/StudyNotes/snReflectionMirrors. htm.