This preview shows page 1. Sign up to view the full content.
Unformatted text preview: 6 CPA ) is equal to 1 . The triangles CV B and CPB share a common side, the horizontal distance from C to B (which we refer to as x ). Therefore, tan 2 = x d a and tan 1 = x d . Using the small angle approximation (so a ratio of tangents is nearly equal to a ratio of sines) and the law of refraction, we obtain tan 2 tan 1 sin 2 sin 1 x d a x d n 1 n 2 d d a n which yields the desired relation: d a = d/n ....
View
Full
Document
This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.
 Fall '08
 SPRUNGER
 Physics, Light

Click to edit the document details