Optics Study Guide 2

Question 1

Plane Mirrors Instructions

Answer 1

1. Label your incident ray
2. Label your reflected ray
3. Measure 90 degrees from the incident ray and make a mark
4. Draw a “normal” & label it (dotted)
5. Count from the 90 on the given angle
6. Count from the 90 on the other side, make a mark, draw a line
7. Label your degrees of incidence and of reflection

Question 2

Plane Mirrors Characteristics

Answer 2

L (Location) - behind mirror
O (Orientation) - upright
S (Size) - Same
T (Type) - Virtual

Question 3

Converging Concave Mirror Instructions

Answer 3

1. Ray goes through the top of the object, parallel to PA and reflects through F (focal point).
2. Ray goes across the top of the object, through F and reflects parallel to the PA.
3. You can check for accuracy with a ray from the top of the object through C (center of C).

Question 4

Concave Object Beyond C

Answer 4

Image 
L - Between C+F
O - inverted
S - smaller
T - real

Question 5

Concave Object Between C and F

Answer 5

Image
L - Beyond C
O - inverted
S - larger
T - real

Question 6

Concave Object at F

Answer 6

GO THRU C
Parallel
NO IMAGE

Question 7

Concave Object Between ‘F’ and ‘V’

Answer 7

***LAW OF REFLECT ALWAYS**
L - Behind mirror
O - upright
S - larger
T - virtual

Question 8

Concave Object At C

Answer 8

L - At ‘C’
O - inverted
S - same
T - real

Question 9

Diverging Convex Mirror Instructions

Answer 9

1. Try and go from the top through f, hit the mirror, draw dotted line behind mirror
2. Try and go thru c, hit mirror, dotted line

Question 10

Diverging Convex Characteristics

Answer 10

L - behind mirror
O - Upright
S - Smaller
T - Virtual

Question 11

Magnification Triangles

Answer 11

hi
m ho

di
m do

Question 12

what’s the order?

Answer 12

concave
c, f, mirror

convex
mirror, c, f