mirrors why bother? see yourself telescopes cars projectors/tv magic
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Plane Mirrors Is this kind of plane mirror possible?TRANSCRIPT
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Mirrors why bother?
seeyoursel
f
telescopes
cars
Projectors/TV
magic
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3 types of mirrors
Flat (plane, infinite)
Concave (caved in, converging)
Convex (vexed out, diverging)
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Plane Mirrors
Is this kind of plane mirror possible?
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Curved Mirror Terms
C f
principal axis
focal point= r/2(horizontal light focuses here)
The Center of Curvature or radius “r”
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Real vs. Virtual Images
Virtual Image: Light reflects off mirror but diverges (scatters) so it appears on the opposite side of mirror(you see it, but only in your mind- it’s not there!
Real Image: Light from an object reflects off mirror, converges (focuses) back on same side of mirror(you see it and can feel it or re-project it)
Real Image
Virtual Image
Object
Object
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Virtual images are posers!
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Real images are inverted always!
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3 types of curved mirror pictures
Convex object anywhere
Concave- object closer than focal pt.
Concave- object further than focal pt.
C f C fC f
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Summary: ConcaveObject far from mirror: real, inverted, smaller
Object very close: virtual, upright, larger
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Summary: Convex Mirrors
No matter where you put the object,….Only get……virtual, upright, smaller images
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The end- see it again on my web site!Hubble Telescope