Images in a Curved Mirror Convex Mirrors

Terminology of Convex Mirrors The parts of a convex mirror and the imaging rules for a convex mirror are similar to those for a concave mirror The difference is that F (now called a virtual focus) and C are behind the mirror and light rays seem to come from an apparent light source behind the mirror

How to locate the image in a convex mirror Similar to a concave mirror, three light rays must be drawn originating from the top of the object: Ray travels parallel to the PA and reflects in line with F (extend the ray straight behind the mirror with a broken line) Ray aimed at F is reflected parallel to the principal axis (draw the incident ray behind the mirror with a broken line) Ray aimed at C and reflects back along the same path (extend behind the mirror with a broken line)

Characteristics of the Image in a Convex Mirror S – smaller A – upright L – located behind the mirror T – virtual convex mirror demonstration

Uses of Convex Mirrors Security mirrors in stores – show a wide range of view with a smaller virtual image Side-view mirrors on vehicles – “Objects in mirror are closer than they appear” On front of school bus – allows drivers to see children both beside and in front of the bus

Side View Mirror

Using the First Law of Reflection to Predict the Field of View of a Plane and Convex Mirrors possible field of view

Using the First Law of Reflection to Predict the Field of View of a Convex Mirror possible field of view

Pg. 501 # 1-10 Pg. 506 #1,3,4,7,9,10,12,13,15,16,18,19 Light Quiz Tomorrow