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REFLECTION OF LIGHT

CONTENT

  1. Reflection of Light

 

Reflection of Light

As earlier discussed, light waves undergo reflection. The nature of the reflection depends on the type of surface the light is incident on. Thus, we have two types of reflections namely, regular reflection and diffused reflection. If the reflections are such that the rays are parallel to one another and are in one direction, we have regular reflection. This happens when light is incident on a polished or smooth surface. If on the other hand, the rays of light are incident on a rough surface, the rays will be reflected in different directions. This type of reflection is called diffused reflection.  These are shown in the diagrams below.

1. The incident ray, the reflected ray and the normal ray at the point of incidence all lie in the same plane

2. The angle of incidence (i) is equal to the angle of reflection (r)

Educator should carry out a simple experiment to investigate these laws of reflection.

Lesson tags: Physics Lesson Notes, Physics Objective Questions, SS2 Physics, SS2 Physics Evaluation Questions, SS2 Physics Evaluation Questions Third Term, SS2 Physics Objective Questions, SS2 Physics Objective Questions Third Term, SS2 Physics Third Term
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