Physical Experiment Report "Observing Convex Lens Imaging"
Explore the subject; explore the characteristics of plane mirror imaging.
1. Ask the question; is the flat mirror a real image or a virtual image? Is it an enlarged or reduced image? Where is the location of the resulting image?
2. Conjectures and assumptions; plane mirrors are virtual images. The size of the image is equal to the size of the object. The image and object are on both sides of the plane mirror.
3. Formulate plans and design plans; the experimental principle is the law of light reflection.
Required equipment; candles, plane mirrors, scales, white paper, matches,
Experimental steps; First, a 16-inch white paper is laid on the desktop, and a straight line is drawn with a pencil on the center line of the white paper, and the plane mirror is vertically stood on the straight line.
two. Light the candle on one side of the plane mirror. From this side, you can see the image of the lit candle in the plane mirror. The opaque paper is used to block the back of the plane mirror. It is found that the image still exists, indicating that the light does not pass through the plane mirror. The image formed behind the plane mirror is not the convergence of the actual light, it is a virtual image. three. Take off the shading paper and put an unlit candle behind the plane mirror. When the height of the candle is equal to the height of the lit candle, you can see that the unlit candle behind it seems to be lit. The size of the image behind it is equal to the size of the object.
four. Record the position of the lit candle and the unlit candle with a pencil, remove the flat mirror and the candle, use the scale to measure the mark made on the white paper, and measure the distance between the lit candle and the flat mirror and the distance from the unlit candle to the flat mirror. Compare the size of two distances. The findings are equal.
5. self assessment. The experimental process is reasonable and the conclusions obtained are correct. It is best to do this experiment in the darkroom, the phenomenon is more obvious. There should be no error in the error. The key is that the experimenter should carefully and carefully measure the measurement when using the scale. The article you are browsing is organized by the first 'Panwen.com', and the copyright belongs to the original author and the original source.
6. Exchange and application. Through this experiment we have come to the conclusion that the image formed by the object in the plane mirror is a virtual image, the size of the image is equal to the size of the object, and the distance from the plane mirror is equal to the distance from the object to the plane mirror. The line connecting the object is perpendicular and evenly divided by the plane mirror. For example, when we stand in front of the mirror, we look at the mirror in our own image, the distance to the mirror is equal to the distance from the person to the mirror. When we approach the plane mirror, we will see the image in the mirror. Also approaching us. We can also explain why the object in the water is like a reflection. The calm water surface is actually a plane mirror. and many more.
1. Ask the question; is the flat mirror a real image or a virtual image? Is it an enlarged or reduced image? Where is the location of the resulting image?
2. Conjectures and assumptions; plane mirrors are virtual images. The size of the image is equal to the size of the object. The image and object are on both sides of the plane mirror.
3. Formulate plans and design plans; the experimental principle is the law of light reflection.
Required equipment; candles, plane mirrors, scales, white paper, matches,
Experimental steps; First, a 16-inch white paper is laid on the desktop, and a straight line is drawn with a pencil on the center line of the white paper, and the plane mirror is vertically stood on the straight line.
two. Light the candle on one side of the plane mirror. From this side, you can see the image of the lit candle in the plane mirror. The opaque paper is used to block the back of the plane mirror. It is found that the image still exists, indicating that the light does not pass through the plane mirror. The image formed behind the plane mirror is not the convergence of the actual light, it is a virtual image. three. Take off the shading paper and put an unlit candle behind the plane mirror. When the height of the candle is equal to the height of the lit candle, you can see that the unlit candle behind it seems to be lit. The size of the image behind it is equal to the size of the object.
four. Record the position of the lit candle and the unlit candle with a pencil, remove the flat mirror and the candle, use the scale to measure the mark made on the white paper, and measure the distance between the lit candle and the flat mirror and the distance from the unlit candle to the flat mirror. Compare the size of two distances. The findings are equal.
5. self assessment. The experimental process is reasonable and the conclusions obtained are correct. It is best to do this experiment in the darkroom, the phenomenon is more obvious. There should be no error in the error. The key is that the experimenter should carefully and carefully measure the measurement when using the scale. The article you are browsing is organized by the first 'Panwen.com', and the copyright belongs to the original author and the original source.
6. Exchange and application. Through this experiment we have come to the conclusion that the image formed by the object in the plane mirror is a virtual image, the size of the image is equal to the size of the object, and the distance from the plane mirror is equal to the distance from the object to the plane mirror. The line connecting the object is perpendicular and evenly divided by the plane mirror. For example, when we stand in front of the mirror, we look at the mirror in our own image, the distance to the mirror is equal to the distance from the person to the mirror. When we approach the plane mirror, we will see the image in the mirror. Also approaching us. We can also explain why the object in the water is like a reflection. The calm water surface is actually a plane mirror. and many more.
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