In a medium, the speed of light v is less than c. The quantity n = c/v is the index of refraction of the medium.
Snells Law: n_1*sin(theta_1) = n_2*sin(theta_2). The law describes the bending of light as it travels from one medium into another.
It is possible to derive Snells law from Fermats principle.
Refraction of Light, Part 1
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.
The book offers a complete review of your AP course, strategies to give you the edge on test day, and plenty of practice with AP-style test questions. It includes full length practice exams modeled on the real test and all the terms and concepts you need to know.
This book includes a review of all the topics tested including vectors, kinematics, fluid mechanics, optics and nuclear physics. Additionally, the book includes two full length tests made complete with descriptive solutions, and quick study tables for Physics B formulas and equations.