PHY 1122 Study Guide - Refractive Index, Refraction, Virtual Image
Document Summary
The purpose of this lab was to observe light rays in order to verify snell"s law, observe converging and diverging lenses, and to determine focal lengths by various means. The laser box was used to shine one beam at an incident angle i" and the reflected angle was measured to be r". A single beam was shone through a plexiglas rectangular prism and a semi-circle. Using the incident and refracted lines and snell"s law the respective angles and refractive indices were found for each. The plexiglas prism was placed in the path of white light in such a way that the different colour beams refracted at different angles. The laser was switched to 3 beams and was pointed at a converging lens. The incident and refraction lines were drawn in and the focal length was measured. The same procedure was done for a diverging lens with one difference.
