Transcript Announcements 3/9/12

Announcements 3/9/12
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Prayer
Exam 2 ends Saturday afternoon
Typo on exam equations (doesn’t affect any
problems): first equation under “Gaussian
wavepacket”, for F.
Reading Quiz
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What is the equation with the strange name in
today’s assignment?
a. the aneilok equation
b. the eikonal equation
c. the keilano equation
d. the lonakei equation
e. the nokeila equation
Reading Quiz
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Who deduced the principle that says light rays
moving from pt A to pt B will take the path that
takes the least amount of time?
a. Faraday
b. Fermat
c. Fresnel
d. Fourier
e. Fraunhofer
(Today’s quiz brought to you by the letter F.)
The Eikonal Equation
Fermat’s Principle
The Lifeguard Problem
Reading Quiz
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What are ABCD matrices good for?
a. describing the change in angle and position
of a ray
b. describing the change in polarization of a ray
c. describing the interference between light rays
d. nothing
Ray Vectors and ABCD Matrices