Plane mirrors.
Plane mirrors, the image is said to be a virtual image. Virtual images are images which are formed in locations where light does not actually reach.
There are some characteristics of a plane mirror:
- Images are virtual.
- If you view an image of yourself in a plane mirror, you will quickly notice that there is an apparent left-right reversal of the image.
- The object distance is equal to the image distance. That is the image is the same distance behind the mirror as the object is in front of the mirror.
- Dimensions of the image are the same as the dimensions of the object.
Convex mirrors.
A convex mirror is described as a portion of a sphere which had been sliced away, that bends out. If the outside of the sphere is silvered such that it can reflect light, then the mirror is said to be convex.
Concave mirrors.
A concave mirror is a also described as a portion of a sphere which had been sliced away, that bends in. If the inside of the sphere is silvered such that it can reflect light, then the mirror is said to be concave.
reference: http://www.physicsclassroom.com/class/refln/
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