Can somebody draw me a ray diagram ?
You can do it easily yourself: For each diagram, draw the plane mirror as a vertical line. Draw a dotted horizontal line that starts at the middle of the mirror (bisects it) and extends to the left (to show the normal to the plane mirror). Then, from where the two lines you’ve already drawn meet, draw another line up and to the left at a 45 degree angle to the dotted line. Put the head of the arrow at the bottom right end of this line, where the other two lines meet. This is your incident ray. Draw another line starting at the head of the incident ray and going down and to the left, making a 45 degree angle below the dotted line. Put the head of this ray (the reflected ray) so that it faces away from the mirror. Label the rays and the degree of the angle between each ray and the normal. Do the same for the the other two angles, but remember that the angle of incidence and reflection are the same and are measured from the normal, not from the plane of the mirror.
