Flat mirror imaging is a physical phenomenon. It refers to the light from the sun or a lamp shining on a person, being reflected onto a mirror surface, and then reflected back into the person's eyes by a flat mirror. Therefore, we see our virtual image in the flat mirror. When you look in the mirror, you can see another "you" in the mirror, and the "person" in the mirror is your "image". In mirror imaging, what you see on your left is still on your left, and what you see on your right is still on your right. However, if two people are facing each other, your left side is on each other's right, and your right side is on each other's left. This effect is also called mirroring. The image in a plane mirror is formed by the intersection of the extension lines of the reflected light rays, so the image in a plane mirror is a virtual image. The virtual image is equal in size and distance to the object. Like being equal in size to an object. So the object is symmetrical to the mirror surface. According to the characteristics of flat mirror imaging, the size of the image and the object are always equal. No matter how the distance between the object and the plane mirror changes, the size of the image it forms in the plane mirror remains the same as the size of the object. However, due to the feeling of "near big, far small" when observing objects, when a person walks towards a flat mirror, their vision does feel like it is "getting bigger". This is because the size of the object observed by the human eye is not only related to the actual size of the object, but also closely related to the "perspective". Draw a straight line from the human eye to each end of the observed object, and the angle between these two lines is called the "viewing angle". If the viewing angle is large, people will think that the object is large, and if the viewing angle is small, people will think that the object is small. When a person approaches a flat mirror, the distance between the image and the person decreases, and the perspective of the person observing the object increases. Therefore, the image seen also feels larger. However, in reality, the size of the image and the person is always the same, which is why the human eye perceives objects as "larger near and smaller far".https://zoomkingzg.com/