2. Quiz #5

4. A blue photon has a higher energy than a green photon

6. Total internal reflection (TIR) only happens for a wave inside a medium with a slower speed Air glass Air glass

7. Total internal reflection with microwaves Introductory explanation of microwave source and detector

13. EM Waves can be “linearly polarized” Similarly, a transverse wave on a rubber tube has a polarization hyperphysics.phy-astr.gsu.edu

16. How do polarized sunglasses work? The amount of light reflecting off the surface of water depends on the polarization One component reflects more than the other, So, reflected sunlight is polarized Polarized sunglasses can specifically absorb this polarization You tube: http://www.youtube.com/watch?v=jNXeNdmz92o&feature=related http://commons.wikimedia.org/wiki/File:Mudflats-polariser.jpg

17. So far, we have talked about linearly polarized light A trickier concept is circularly polarized light This occurs when the X and Y components are out of phase. http://www.ecs.umass.edu/ece/ece334/ece334/JavaApplets/Polarization/Polarization%20Applet.htm Circular polarization demo with laser? Specific rotation with sugar

18. A final application of polarized light Nerdy physics demo More cool demo: http://www.austine.com/