- When Light Is Incident On The Boundary Between Two Different Materials With Different Indices Of Refraction Some Of The 1 (32.75 KiB) Viewed 492 times
When light is incident on the boundary between two different materials with different indices of refraction, some of the light can, in some cases, continue across the boundary, and some or all of the light bounces back without crossing the boundary. Refraction is when the light crosses the boundary, while reflection is when the light bounces back without crossing the boundary. In this lab we will focus on refraction. Answer the following questions before starting the lab. You may want to read about refraction, Snell's law of refraction, and chromatic dispersion before answering these pre-lab questions. 1. What are the SI units of the index of refraction? none of the above 2. Select all of the following that are explicitly included in Snell's law of refraction. critical angle angle of reflection angle of incidence angle of refraction 3. How are the angles defined Snell's law of refraction? between the light ray and the normal line ✓ 4. Which statement is true for total internal reflection? The angle of incidence is greater than the critical angle.