Images Formed by Plane Mirrors di : image distance (from mirror) di do : object distance mirror i : angle of incidence do i r r i r : angle of reflection Object normal line eye Law of Reflection: the angle of incidence equals the angle of reflection ; i = r

Images Formed by Plane Mirrors Image is: - Virtual (exists in virtual space) one real baby, and his imaginary twin is the same distance from the mirror as the object real baby’s legs and imaginary twin’s are the same length - is the same size as the object both babies are the same height - is upright (right-side-up) vs. upside-down (that would be weird) I - is reverse oriented (right to left) real baby’s right arm is outstretched, imaginary twin’s left arm is

Images Formed by Spherical Mirrors 2 Types of Curved Mirrors: Concave ex. bowl of spoon Convex ex. back of spoon

Images Formed by Concave Mirrors Case I: Object at infinity C F Image is: Case II: Object Beyond C O 1 Real Inverted 2 Reduced C F Located between F and C I 3

Case III: Object at C Real O Inverted Same Size C F Located at C I Case IV: Object Between C and F O Real Inverted Enlarged C F Located beyond C I

Case V: Object at F O No image C F Case VI: Object Between F and mirror I O Virtual C F Upright Enlarged Located behind mirror

Convex Mirror: Put object wherever you like F C

Convex Mirror: Put object wherever you like F C Virtual Upright Reduced Located behind mirror