(2) The angle of incidence i and the angle of reflection r have the same size.Ī light ray strikes a reflective plane surface at an angle of 56° with the surface.Ĭ) Find the angle made by the reflected ray and the surface.ĭ) Find the angle made by the incident and reflected rays. (1) The incident light ray, the reflected light ray and the normal to the interface at the point of incidence make a plane called the plane of incidence R is the angle made by the reflected ray and the normal to the interface and is called the angle of reflection. I is the angle made by the incident ray and the normal to the interface and is called the angle of incidence. The point at which the incident ray strikes the interface is called the point of incidence. The surface separating the two media is called the interface or boundary.
We first look at the vocabulary used to describe the reflection of light.
When light strikes a perfectly reflecting surface, such a mirror for example, all the light energy is reflected. When a light ray strikes a surface separating two media with different optical properties, part of the light energy is reflected back to the media where it coming from. Reflection of Light Rays on a Reflecting Surface
