Physics 3320 (Fa14)

Week 8 (Oct 13-Oct 17): We are moving to Griffiths Ch 9 now, electromagnetic waves!

This week we start the study of EM waves. The use of these to transmit information has had a profound effect on almost every aspect of life, everyday as well as global!
See this site (it's old Java - I had to go into my java security preferences (on a mac) and explicitly allow it to run!) for a really nice simulation of waves on a string bouncing off a boundary. I found it instructive to stare at! Be patient - the wave does not "move" quickly, but that gives you more time to think about what is going on :-) Try both "fixed" and "free" ends, think about what you are seeing! In a similar way, the "wave on a string" phet sim is simple but quite instructive too.

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Announcements:

• Preflight #7 due Monday, 10 AM. Password always 3320)
• Homework #7 due Wed, Oct 15 (at start of class. Free automatic extension to Friday Oct 17 (start of class) due to QM test...)
• Reading: We're in Ch 9 (and will cover everything up through 9.4.2)
• Visit our piazza page and ask a question. Or answer someone else's for a little extra credit!

OLD ANNOUNCEMENTS can be found here: Week 1, Week 2, Week 3, Week 4, Week 5, Week 6, Week 7,