Date post: | 26-Mar-2015 |
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Properties of Curved Mirrors and Lenses
Concave Mirror
Convex Mirror
LENSES
Converging Diverging
F F
CONVERGING LENS
Ray parallel to axis through F
Ray through F parallel to axis
Ray through center of lens no bending
Diverging Lens – smaller virtual image inside of F
Mirror & Lens Equations
1 1 1-- + -- = --do di f
di POSITIVE for REAL image NEGATIVE for VIRTUAL image
f POSITIVE for Concave Mirror CONVERGING lens NEGATIVE for Convex Mirror DIVERGING lens
Si - di
M = -- = -- So do
M = magnification
Si = size of image
So = size of object
beyond 2F
@ 2F
between 2F & F
inside of F
@ F
Concave Mirror & Converging Lens
Object Location
Image Location
Image Type
Image Size
beyond 2F (C)
@ 2F (C)
between F & 2F (C)
@ F
inside F
Object Location
Image Location
Image Type
Image Size
beyond 2F (C)
between F & 2F (C)
real smaller
@ 2F (C) @ 2F (C) real same
between F & 2F (C)
beyond 2F (C)
real larger
@ F no image ------------ ------------
inside F Behind mirror;
same side lens
virtual larger
Convex Mirror; Diverging Lensobject @ any location
virtual image, smaller
Plane Mirrorobject @ any location
virtual image, same size