Real vs Virtual Images

• Concave Mirror• Image in front• Image is Real• Light rays converge• Use a Card

Real vs. Virtual Images

• Concave Mirror• Image behind

mirror• Image is virtual• Appears to

converge

Concave Mirrors

C f

through the focal point!Incoming Parallel rays reflect:

Concave Mirrors

C f

parallel!Rays through (or from) f reflect:

Concave Mirrors

C f

back through C!Rays through C reflect:

Convex Mirrors

C f

away from focal point!Incoming parallel rays reflect:

Note: Only the red lines are used to locate the image

Convex Mirrors

C f

parallel!Rays towards focal point reflect:

Convex Mirrors

C f

back away from C!Rays towards C reflect:

Find the Image

R = Region S = Size O = Orientation T = Type of Image

Image Characteristics

Concave and Convex

Concave: Object at center of Curvature

ConcaveObject between C and F

ConcaveObject between F and Mirror