powerpoint presentation

1. .

2. Optics – A specific field of study in physics which is solely
devoted to the study of light and its interaction with matter.
When you look at the mirror, you see yourself as if you were on
the other side of the mirror, which is at the back of the mirror. This
is called .

3. To illustrate the formation of this
image, consider a point O (object). It is
located in front of a plane mirror.
Light coming from the object hits the
mirror at different points and they are
reflected following the law of
reflection. If you extend the reflection
ray to the back of the mirror, you will
find a point where all the rays meet.
This common point is the image (l) of
the point object O. This is called
because the object is a point
and is located at a distance at the
back of the mirror.

4. This point image is said to be virtual
because light does not actually pass
through it.
Here, the and
are equal but
opposite, that is, , where the
negative sign denotes that the distance is
extended to the back of the mirror.