I didn't have anyone at my office hours this week. I did help someone outside of office hours. The students have their test on Tuesday. I think this is going to be a hard one if they do not practice a lot beforehand. Dr. Liu told them study lenses and mirrors and do a lot of problems with that. While these are not extremely difficult concepts drawing ray diagrams under time pressure will be difficult. The rest of the chapters are complicated with regards to the equations, but there are a lot of trick questions that are possible. Understanding what light is and how it changes as it moves through different mediums only has a couple of equations, but students have to understand how to use equations.
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