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on January 29, 2021
Properties of images formed by a mirror.
Properties of images formed by a mirror.
Lets consider object pp’ placed in front of a mirror. The rays strike the mirror and reflected . the ray appear to the eyes as if they come from QQ’ . PB=BQ, while PQ is perpendicular tp AB
There is no actual or real rays that comes from QQ’ to the mirror at A , the image is therefore vitual, it cannot be seen on a screen placed at QQ’ like that of pin hole camera.
A Virtual image is the image which can not be formed on screen
A Real image is the image which can be formed on the screen
The image in a plane mirror has the following properties.
- Virtual
- The same size as the object
- Upright
- The same distance from the mirror as the object
- Laterally inverted
Images formed by inclined mirrors
When two mirrors are inclined at right angle and candle O is placed in front of them . Three images are formed and seen by observer . when these mirrors are inclined at an angle different from 90 degree, the number of images formed will be increase or decrease. When the mirrors are parallel , an infinite images will be seen.
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