Polarization
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Transcript Polarization
Only transverse waves can be “sorted” using
polarizers
Polarizers only allow waves vibrating in the
direction of their openings to get through
Reduction of glare
Concentrating radio signals
Chemistry, geology, navigation, etc.
Your eyes see 3D because they are spaced apart
Each eye sees a slightly different image
Your brain interprets how the images go together
3D movies involve two slightly different views
of the movie shown at once
Polarized 3D lenses allow each eye to only see one of
the views
Your brain then puts together what the eyes are
seeing
Instead of using polarized lenses, a red and a
cyan lens can be used to see a moving in 3D
The two different views of the movie that are shown
simultaneously are colored red and cyan
Each lens filters out one of the views, so each eye
only sees one of the views
Then your brain does the rest of the work.
Curved mirror can change the size of an image
Concave mirrors make images smaller or larger
Convex mirrors make images smaller (security
mirrors)
Concave mirrors can
produce images in front
of the mirror
All of the light converges
at points in front of the
mirror causing the image
to form there
flexible, transparent fiber made of a pure
glass not much thicker than a human hair
Light gets “trapped” inside of the fibers
because of total internal reflection.
The light bounces off the sides of the fiber at
angles larger than the critical angles causing it
to stay inside the fiber