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- Ans. Mirrors reflect because of the presence of free electrons, which makes mirrors electrically conductive. The silver atoms behind the glass absorb the photons of incoming light energy and become excited.
www.sciencefacts.net/reflection.html
Dec 28, 2020 · When a light wave hits a surface, all or part of it will turn around sharply and reflect away from the surface again. For a smooth surface like a plane mirror, almost all of the light that hits it is reflected, and the resulting image is a clean, "specular" reflection.
- Terms Used in Reflection
- Specular Reflection
- Diffuse Reflection
Incident Ray:The ray of light that is incident on the interface.Reflected Ray:The ray of light that is reflected from the interface.Normal:The perpendicular to the interface.Angle of Incidence:The angle that the incident ray makes with the normal.In the case of specular reflection, the angle of reflection is equal to the angle of incidence, thus giving a mirror-like reflection.
In the case of diffuse reflection, the incident ray reflects from the interface in all directions. In other words, the angles of reflections are different for each reflected ray.
If a ray of light could be observed approaching and reflecting off of a flat mirror, then the behavior of the light as it reflects would follow a predictable law known as the law of reflection. The diagram below illustrates the law of reflection.
When light reflects off of a mirror, the reflected light has properties that make it appear that those light rays were generated in a particular spot. For example, when we look in a bathroom mirror and see our reflection, that reflection occurs at a point where the reflected rays of light appear to have been generated.
Light waves are refracted as they enter the glass because they are slowed down. The spectrum is produced because different colours of light travel at different speeds in glass.
Since the wavelength of light is less than a micron (a thousandth of a millimeter), it acts like a ray in the many common situations in which it encounters objects larger than a micron. For example, when light encounters anything we can observe with unaided eyes, such as a mirror, it acts like a ray, with only subtle wave characteristics.
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For example, when light encounters anything we can observe with unaided eyes, such as a mirror, it acts like a ray, with only subtle wave characteristics. We will concentrate on the ray characteristics in this chapter.
