The test . . .

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# The test . . . - PowerPoint PPT Presentation

The test . . . Correct CID or lose 5 points No more than 3 papers stapled neatly to the answer sheet. Horizontally Polarized Light. Vertically Polarized Light. Diagonally Polarized Light. Circularly Polarized Light. Elliptically Polarized Light. Unpolarized Light. Polaroid.

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Presentation Transcript
The test . . .
• Correct CID or lose 5 points
• No more than 3 papers stapled neatly to the answer sheet
When unpolarized light of intensity Io is incident on a polarizer what is the intensity of the light that will be transmitted?
• Io /2
• Io /4
• 2Io
• zero
• Depends on the angle of the transmission axis of the polarizer
Unpolarized light of intensity I0 is sent through three polarizers, one after the other, which pass light polarized at 0, 45, and 90 degrees. What is the intensity of the light exiting the last polarizer?

A : 0

B : I0

C : I0 / 2

D : I0 / 4

E : I0 / 8

MATTHEW 20:30-34

30. ¶ And, behold, two blind men sitting by the way side, when they heard that Jesus passed by, cried out, saying, Have mercy on us, O Lord, thou Son of David.

31. And the multitude rebuked them, because they should hold their peace: but they cried the more, saying, Have mercy on us, O Lord, thou Son of David.

32. And Jesus stood still, and called them, and said, What will ye that I shall do unto you?

33. They say unto him, Lord, that our eyes may be opened.

34. So Jesus had compassion on them, and touched their eyes: and immediately their eyes received sight, and they followed him.

Brewster Windows

image from http//www.jklasers.com/HeNe/HeNe_Laser_Report.htm

Other Ways to Affect Polarization
• Birefringence
• Scattering
• Optical Activity
Cat’s eyes have pupils that can be modeled as vertical slits. At night, would cats be more successful in resolving
• Two headlights on a distant car
• Vertically separated lights on the mast of a distant boat
• If the two sets of lights are the same distance away, the ability to resolve them would be the same.
Exam Review Topics
• Reflection, Refraction, Snell’s Law, Total Internal Reflection, ray approximation
• Images with mirrors, ray diagrams
• Images with lenses, lens maker equation
• The eye, glasses
• Angular magnification, magnifying glasses, microscopes, telescopes
• Interference, two slit interference pattern
• Thin film interference
• Diffraction, diffraction grating, resolving power of grating, resolving power of telescope, etc.
• Polarization