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Square Flat Mirror
There are all kinds of mirrors on the market, such as common dressing mirrors, various spherical mirrors, reflectors, telescopes, periscopes, etc. A flat plane mirror is one of the most frequently used items in our daily life, and a glass mirror is the most common.
The object whose surface is flat, smooth, opaque, and can be imaged is called a plane mirror. The image formed by a plane mirror is formed by the reverse extension of the reflected light after the light from the object is reflected by the plane mirror. Calm water and polished metal surfaces are equivalent to flat mirrors.
Nowadays, there are all kinds of mirrors on the market, such as common dressing mirrors, various spherical mirrors, reflectors, telescopes, periscopes, etc. A flat mirror is one of the most frequently used items in our daily life, and a glass mirror is the most common. It is made of flat glass by an electroless silver plating method, which is mainly used for furniture accessories such as clothes and makeup mirrors, makeup, and other purposes.
The function of a flat mirror
1. Imaging with a flat mirror: the flat mirror is an upright virtual image, the distance between the image and the object is equal to the mirror, and the line between the image and the object is perpendicular to the mirror.
2. Change the light path: light will be reflected when it meets the flat mirror. According to the angle between the incident light and the flat mirror, the angle of the emitted light will be different.
3. Expand the field of vision: the flat mirror can expand the field of vision. Because the flat mirror presents an upright and large virtual image, it can be used as a telescope, etc.
What is a flat mirror?
Objects with flat and smooth surfaces that can be imaged are called planar mirrors. The image formed by a flat mirror is formed by the reverse extension of the reflected light after the light from the object is reflected by the flat mirror. Calm water and polished metal surfaces are equivalent to flat mirrors. We call a mirror whose reflecting surface is a smooth flat mirror.
Principle of flat mirror imaging
Flat mirror imaging is a physical phenomenon, which refers to the image in the mirror. It refers to the light of the sun or lamp shining on people, is reflected in the mirror, and the flat mirror reflects the light into people's eyes, so we see our virtual image in the flat mirror. When you look in the mirror, you can see another "you", and the "person" in the mirror is your "image". In mirror imaging, what you see on your left is still on the left, and what you see on your right is still on the right. But if two people face each other, your left is on the other side's right, and your right is on the other side's left. This effect is also called mirroring.
Application of flat mirror imaging
①In the practice room, actors use it to observe their posture and movements;
②Dentists use a small flat mirror to observe the sick teeth of patients;
③After the submarine dived, the personnel in the submarine observed the situation on the water's surface through a periscope;
④Guilin flower bridge in Song Dynasty (water mirror);
⑤Reflection in the water;
⑥Projector.
