1. 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

2. 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

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

4. 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

5. 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

6. 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

7. Convex Mirror: Put object wherever you like
F C

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