Learn about the laws of reflection and refraction.
Investigating the position of an image in a plane mirror
Draw a pencil line across the top of a sheet of white paper. Mark points A and B. Select a position for the object and label that O.
Extend the reflected rays behind the mirror until they meet at point. This is where the image was formed. Label the point I. These dotted lines are called virtual rays.
For each position of the object:
Another way of saying this is: