Why do mirrors reflect?

Reflection is actually the reflection of light. There are two types of reflection of light: diffuse and specular.

Diffuse reflection refers to the projection of light on an object, because the surface of the object is rough and uneven, so the light is projected in all directions, and the reflection phenomenon is not visible. Specular reflection means that light is cast on an object with a smooth or almost smooth surface, and can be reflected all or most of it along the theoretical reflection angle, and it can be imaged. Mirrors, on the other hand, are made up of glass and a reflective coating, which is almost smooth to form a specular reflection.

The reflection of light from a mirror obeys the law of reflection, and its reflectivity depends on the angle of the incident light, the smoothness of the mirror, and the nature of the coated metal film. The imaginary line perpendicular to the mirror is called the normal, and the angle between the incoming ray and the normal and the angle between the reflection line and the normal are equal. The object in front of the plane mirror is formed into an upright virtual image behind the mirror, and the distance between the image and the mirror is equal to the distance between the object and the mirror.

If you want to see your entire length in the mirror, the mirror must be at least half the length of your body because the angle of incidence is equal to the angle of reflection. The reflective surface of a concave mirror is oriented towards the center of curvature.

The light hits the mirror, creating a reflection.

It's just polished, because the mirror polished can reflect light, and then you can look in the mirror, and the mirror has a great effect on us human beings.

It's not that mirrors can reflect light, but that they can reflect images called mirrors.

There are two types of reflection of light: diffuse and specular.

Diffuse reflection refers to the phenomenon that the light is projected in all directions and cannot be seen due to the rough and uneven surface of the object on the object.

Specular reflection means that light is projected on an object with a smooth or almost smooth surface, and can be imaged by reflecting all or most of it along the theoretical reflection angle.

Due to the smooth surface of the mirror and the coating behind the mirror, it can reflect the sun's rays completely, that is, specular reflection, that is, the reflected light is all in one direction and illuminates that direction.

The mirror is flat and specularly reflects the light, so you can see a reflection at an angle.

Because mirrors are generally concave or convex mirrors, they reflect when exposed to direct light.

Smooth surfaces can reflect light, and the base coating in the mirror makes it possible to reflect light.

Because there is a coating on the back of the glass, a full reflective coating, I really want to help you look forward to it

Mirrors reflect light because a reflective film (usually silver or aluminum) is placed on one side of the mirror glass, which reflects the light that enters the mirror.

It is recommended that you review the junior high school physics: the principles of refraction and reflection of light.

It's not that mirrors can reflect light, but that they can reflect images called mirrors.

Because there must be reflection, refraction and other phenomena on the interface of light (the interface between the two media).

Only those interfaces with smooth interfaces and high reflectivity can be imaged and used as mirrors.

Geometric optics is a descriptive science, which solves the problem of "how", but not the problem of "why".

In fact, the reflected light is not reflected at the point of incidence, but there is a displacement difference called "Guth-Hansheng displacement", which must be learned in college (and it is only learned by majors related to optics, and generally university physics public courses such as "General Physics" may not necessarily be learned).

If the "why" question is to be solved, it must be explained by quantum electrodynamics. I couldn't tell for a while.

Similar to other scientific theories, quantum electrodynamics itself is developing, and human exploration of nature is endless.