Definition Mirror

If someone stands in front of a shiny object like a mirror , then surely it can be seen that picture looks like him. This picture is called a shadow .

If an object is illuminated , the object will reflect light in all directions . Light from the object will be the number of points on the surface of the reflector . Light beam falling at various points with a different angle. As a result, the light reflected by the different reflection angle .

Extension of the reflected light from various points on the mirror will intersect at a point. Intersections extension of light - reflected light is what creates the illusion of objects. Because the images forming an intersection of the reflected rays of different extension at the back surface of the reflector, it can only be a shadow without a catch can with a screen . Shadows are formed from the extension of the reflected light is called a virtual image , because this image can not be captured by the screen . Conversely , if the shadow is formed from the intersection of the reflected rays (not an extension of the reflected rays) , the image is called a real image (true) because these shadows can be captured by the screen.

Broadly speaking , the mirror can be divided into three types:

1. Flat mirror .
2. Concave mirror .
3. Convex mirror .