What are the two laws of reflection?

• The angle of incidence equals the angle of reflection and the incident ray, the reflected ray, and the normal all lie in the same plane.

• The angle of incidence is greater than the angle of reflection and the incident ray, the reflected ray, and the normal do not lie in the same plane.

• The angle of incidence is less than the angle of reflection and the incident ray, the reflected ray, and the normal do not lie in the same plane.

• The angle of incidence is equal to the angle of reflection and the incident ray, the reflected ray, and the normal do not lie in the same plane.

What is the difference between specular reflection and diffuse reflection?

• Specular reflection occurs off a smooth, shiny surface while diffuse reflection occurs off an irregular or dull surface.

• Specular reflection occurs off an irregular or dull surface while diffuse reflection occurs off a smooth, shiny surface.

• Specular reflection occurs off a transparent surface while diffuse reflection occurs off an opaque surface.

• Specular reflection occurs off an opaque surface while diffuse reflection occurs off a transparent surface.

Which of the following is an example of specular reflection?

• Reflection off a sheet of paper

• Reflection off a water surface with waves

• Reflection off a crumpled piece of aluminum foil

• Reflection off a plane mirror

What is the main characteristic of a retro-reflector?

• It exhibits specular reflection

• It exhibits diffuse reflection

• It reflects light in all directions

• It reflects light back towards the source

If a light ray strikes a plane mirror at an angle of incidence of 32°, what would be the angle of reflection?

• 32°

• 58°

• 90°

• 180°

If a light ray bounces off a plane mirror at an angle of reflection of 47°, what would be the angle of incidence?

• 47°

• 43°

• 90°

• 180°

Which type of reflection occurs off an irregular or dull surface?

• Specular reflection

• Diffuse reflection

• Regular reflection

• Irregular reflection