{"id":3199,"date":"2020-12-28T05:15:45","date_gmt":"2020-12-27T23:45:45","guid":{"rendered":"https:\/\/cbselibrary.com\/?p=3199"},"modified":"2020-12-28T10:37:22","modified_gmt":"2020-12-28T05:07:22","slug":"image-reflection-by-plane-mirror","status":"publish","type":"post","link":"https:\/\/cbselibrary.com\/image-reflection-by-plane-mirror\/","title":{"rendered":"Image Reflection by a Plane Mirror"},"content":{"rendered":"

Image Reflection by a Plane Mirror<\/h2>\n

Can you think of a plane reflecting surface? The mirror on the dressing table is a good example of a plane reflecting surface. Any smooth polished surface that can reflect the rays of light and form a clear image is called a mirror. Any highly polished metal surface, e.g., a steel plate or still water.<\/p>\n

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Reflection on still water<\/figcaption><\/figure>\n

If you look at yourself closely in a mirror, what do you observe about your image? Is it bigger or smaller than you?
\nPlace the palm of your hand on the flat surface of the mirror and study its reflected image. Is the image bigger, smaller, or of the same size?
\nNow move your hand slowly away from the mirror and observe the size of the image all the time. You will find that the size of the image neither increases nor decreases in size. However, as you move your hand away from the mirror, the image also moves away. The image is at the same distance behind the mirror as the object (here your hand is the object) in front of it.<\/p>\n

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The image size on the plane mirror does not change<\/figcaption><\/figure>\n

Now stand in front of the mirror and see if you can touch your image formed in the mirror.\u00a0You cannot because the image seems to be behind the mirror. Such an image is called a virtual image. A virtual image cannot be formed on a screen. Do you notice anything else about your image? Is the image upside down as compared to you? It is not. Such an image is called an upright image. Thus, a reflecting surface produces an image of certain properties.\u00a0These are called image characteristics. To summarize, the image characteristics of a plane mirror are:<\/p>\n

Size:<\/strong> Look at yourself in a dressing mirror. Move back and forth. Look at the images of the various objects around you. Do you feel that the images are enlarged or diminished (i.e., increased or decreased in size) as compared to the size of the object? You will find that the image size and the object size are the same.<\/p>\n

Upright or inverted:<\/strong> This one is really easy! When you see yourself in the mirror every morning, do you see yourself standing upright, or do you see yourself inverted with your feet pointing to the ceiling of the room? You see yourself upright. In other words, a plane mirror forms an upright (also called erect) image.<\/p>\n

The distance of the image (from the mirror) as compared to that of the object:<\/strong> Stand in front of the mirror and then move back and forth. Observe the image closely. What do you see? You will see that when you move closer to the mirror, your image also seems to move closer. And when you move away from the mirror, your image also seems to move farther away. This is because, in a plane mirror, the distance of the image (from the mirror) equals the distance of the object from the mirror.<\/p>\n

Lateral inversion (left-right reversal):<\/strong> Write your name on a sheet of paper and hold it in front of a mirror. What do you see? You will see that your name has been completely reversed. Furthermore, some letters also look peculiar. This happens because the reflected image undergoes left-right inversion, also called lateral inversion.<\/p>\n

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People also ask<\/strong><\/p>\n