4 - Prism Start over the simulation https'phet.cglgradggdngnZsimulationlbcnding-light and select Prism. Select the prism shape located in the bottom left and drag it in the center. Move the light source as shown in the following image Set the index of refraction to its max possible value (all the way to the right). The goal is to nd the index of refraction of the prism using Snell's law. Select the Protractor and display the normal. Measure the incident and refracted angtes where the ray enters the prism. Measure the incident and refracted angles where the ray exits the prlsm. Input the values of your measurements in the table. . 2]. What is the index of refraction calculated using the data at the entry point? 22. What is the index of refraction calculated using the data at the exit pomt? . o 23. What is the percentage difference between the two values of the index of refraction. 24 Look at the surface where the light exits from the material to the air, as you changeqthe ' color of the ray of light from blue toward red, how does the refracted angle change. Select white light and dark background by clicking the last icon on:. m m 25. What is the name of the physical phenomenon effecting the white . , E ] lightthat you are observing