? Our common mirrors, as well as calm water and mobile phone screens, are all very smooth substances, in which we can see our "mirror images". When we see it, we will find that the mirror is exactly the same as your real self. The whole person is exactly the same, the same height, the same fat and thin, and the naked eye can't see the difference.
? When you move, you will find that you in the mirror will move with you, almost exactly like your movements, as if there are two you. But in a flat mirror, you and your left and right directions are reversed. How to explain this sentence? Suppose you raise your left hand in the real world, but in the mirror, you raise your right hand. On the contrary, if you raise your right hand, you will raise your left hand in the mirror.
? When you are at a certain distance from the mirror, you will find that the distance between yourself in the mirror and the flat mirror (this is the scientific name of the mirror) seems to be the same as the distance between yourself and the flat mirror. The farther you are from the plane mirror, the farther your mirror image is from the plane mirror (the bigger you go, the smaller your mirror image is), and the closer you are to the plane mirror, the closer your mirror image is (the bigger it looks). In a word, we can get a lot of magical phenomena about plane mirror imaging.
? So the main phenomena we get are as follows:
? 1. You look as tall as yourself in the mirror.
? 2. The distance between you and your mirror and flat mirror looks equal.
? It is divided into the following situations, which belong to the problem of plane mirror imaging. Then we already have a problem. What should we do next? That's right. We have to guess. After all, this is only what we see with the naked eye, and there is no debate. How can we be sure that this is accurate? So you put forward a guess and cooperate with the experiment, and the conclusion is true.
? For each question, we can put forward different conjectures:
? 1. The height is really the same.
? 2. The distances are equal.
? In response to these conjectures, we are about to start experiments. But after all, you can't do the experiment by yourself. You have to use some physical objects as experimental materials, such as candles.
? We put the candle in front of the flat mirror to do the experiment, and we need to measure the height of the candle, and then measure the height of the candle in the mirror.
It can be seen that their heights are all 15cm, indicating that the imaging height is equal to the solid height, reaching our first conclusion.
Next, we will do the second experiment: distance test.
This question is very difficult to test. After all, we can't measure the distance from the imaging position to the plane mirror through the mirror, so we can make an imaging position with the second candle as the mirror and find the place that coincides with the mirror position, so we can do the experiment.
We found the imaging positions, and then we have to measure their distance to the plane mirror.
The distance from the imaging position to the plane mirror is 15 cm, and so is the entity, so the experiment is successful. Conclusion We basically come to the conclusion that when an object is in front of a mirror, the distances from its solid and mirror image to the plane mirror are equal respectively.
? To sum up: 1. It can be seen from the measurement that the heights of the solid and the mirror are equal. Of course, having tools does not necessarily mean accuracy. There may be some deviations in some aspects, and there may be more advanced and accurate verification methods. 2. The distance between the entity and the mirror image and the plane mirror can be seen through measurement-the same.
? So this is what we are going to discuss this time.