Day 39: Ray Tracing

Tuesday, 7 October 2014


Above, a photo of a student’s notes. I was super-impressed at the number of kids who immediately realized it was easier to make sense of this diagram if they used color. Below is my photo of the same diagram.


Finally, I wanted to tie the mirror equation (1/f = 1/do + 1/di) to the ray tracing. So, we measured distances on the diagram and checked them with the equations. Below are the results. Not bad!



This day last year: Day 39: Introducing Spherical Mirrors


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