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The ray nature of light is used to explain how light reflects off of planar and curved surfaces to produce both real and virtual images; the nature of the images produced by plane mirrors, concave mirrors, and convex mirrors is thoroughly illustrated.
A mirror is an optical device which can reflect light. Usually, only those devices are meant where the reflection is of specular type and the angle of reflection equals the angle of incidence (see Figure 1).
13 kwi 2023 · Things we call "mirrors" are a special class of objects that reflect an unusual amount of that light. A typical silver mirror reflects 95 percent of the light hitting it, while an aluminum mirror might reflect only 90 percent.
26 sty 2023 · We will focus on mirrors as the standard reflective surface, although there are many other surfaces such as a clear lake which can produce a sharp reflective images. Let us start with the most standard mirror which we use in our daily lives.
Light reflects from a smooth surface at the same angle as it hits the surface. For a smooth surface, reflected light rays travel in the same direction. This is called specular reflection. For a rough surface, reflected light rays scatter in all directions. This is called diffuse reflection.
In this chapter, we look at the reflection of light, how light interacts with mirrors, and how mirrors can be used to form images. To understand reflection and image formation, we will use a model of light based on rays and wave fronts – this is a much simpler model than the electromagnetic wave perspective.
How does a lens or mirror form an image? See how light rays are refracted by a lens or reflected by a mirror. Observe how the image changes when you adjust the focal length of the lens, move the object, or move the screen.
