Nothing New!
 
 
- For the next two lectures we will be studying geometric optics. You already know the fundamentals of what is going on!!! 
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- Namely, you know how light propagates in situations in which the length scales are >> than the light’s wavelength,  I.e as rays
 
-   We will use these laws to understand the properties of mirrors (perfect reflection) and lenses (perfect refraction).  
-  We will also discover properties of combinations of lenses which will allow us to understand such applications as microscopes, telescopes and eyeglasses.