1. Polarization

2. Review of Lenses
to tell whether an object is real or virtual, erect or inverted, enlarged or diminished – DO THE MATH
Real image – di > 0
Virtual image – di < 0
Erect image – hi > 0
Inverted image – hi < 0
Enlarged image – M > 1
Diminished image – M < 1

3. Definition of Polarization:
The vibration of a wave in one geometric plane
Only transverse waves can be polarized
Eg) a wave within a rope
Board with opening in the vertical plane

4. If the waves in the rope were generated in several different planes, the waves would be unpolarized and only the waves in the vertical plane would pass through the vertical opening
Light is a special kind of transverse wave, 3-D

5. Polarization
Ray of unpolarized light
Polarized filter
2nd polarized filter – absorbs vertical vibration and blocks all light

8. When light reflects from a smooth surface the light is partially polarized
Car hood
Vibration absorbed
glare
Eye with polarized sunglasses

9. White Light White light is made up of spectral colors
A prism disperses the light
Spectrum
Red refracts (bends) the least
Orange
Yellow
Green
Blue
Violet refracts (bends) the most

10. Dispersion