What's the point of hanging a mirror on the door?
The mirror's reflection of light obeys the law of reflection, and its reflection ability depends on the angle of incident light, the smoothness of the mirror and the properties of the plated metal film.
The imaginary line perpendicular to the mirror is called the normal, and the angle between the incident light and the normal is equal to the angle between the reflected light and the normal. The object in front of the plane mirror becomes an upright virtual image behind the mirror, and the distance from the virtual image to the mirror surface is equal to the distance from the object to the mirror surface.
Extended data
The appearance of silver mirror and aluminum mirror is very similar, but the cost of materials used for making silver mirror is obviously higher than that of aluminum mirror. Not only that, in terms of labor cost, the production process of silver mirror is also more complicated, and the price and texture will certainly be different.
Specifically, the first difference is that the silver mirror is silver, while the aluminum mirror is metal aluminum; The second difference is that the price of silver mirror is much higher than that of aluminum mirror, with low cost and durability; Difference 3: In brightness, the refractive performance of silver mirror is better than that of aluminum mirror, and it will appear brighter under the same light intensity.
Compared with the paint on the surface of aluminum mirror, the paint on the surface of silver mirror is darker, while the paint on aluminum mirror is lighter. Silver mirror is much clearer than aluminum mirror, and the geometric angle of reflection of object light source is more standardized.