real vs virtual images
Post on 22-Feb-2016
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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
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