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Reflection and Refraction of LightPhy 216-06Group 1Destiny Ball, Amanda Harvey, Ajahni Franklin,Andre Roots, Dylan Scott03/19/19Title Page & Format _____(10 pt max)Purpose & Introduction _____(10 pt maxExperimental Details _____(10 pt max)Results and Discussion _____(50 pt max)Conclusion _____(15 pt max)References _____(5 pt max)Total Grade ________Section 1: Purpose and Introduction
The purpose of the experiment was to use the relationship between light and mirrors toobserve and study the occurrences of refraction and reflection. The main physics concepts in thisexperiment were the properties of mirrors, glass and air and their perspective index of refractionvalues. Light is an electromagnetic wave that does not require a medium to travel that is why ittravels in the vacuum of space. When light does travel through a medium it becomes slower andthe light rays get reflected in certain spots and refracted in other. That property is what causes ashift in the angle of the refracted ray and the incident ray. In this experiment a light was passedfrom the source on to a flat mirror and the angle of reflection was measured to be the same as theangle of incidence which is represented by the law of reflection. Another part of the experimentconsisted of using a prism made of glass and reflecting light off of a curved end and a flat end.The light refracted off of the curved part was governed by Snell’s Law and used to find the indexof refraction of the prism. The curved end refracted the ray and that was used to determine theindex of refraction of the glass prism used. The law of reflection can be written as such :θi=θr(1)Where θiis the angle of incidence and θris the angle of reflection. Snell’s Law is asfollows : n1sinθ1=n2sinθ2(2)Where n1is the index of refraction of the medium light is traveling from, θ1is the angleof incidence, n2is the index of refraction of the medium light is traveling into and θ2isthe angle of refraction. Section 2: Experimental DetailsIn this experiment a light source, an optics bench, a ray table, a triangular mirrorand a semi-circular prism were used to examine the relationships between light and thesurfaces it encounters. The apparatus was set up as shown in figure 1. With the apparatusset up the light source was activated, and the experiment began. The first part consistedof the mirror pointed toward the light source as to get the reflection. In this part the angleof incidence was moved and thus the angle of reflections was equally shifted. The second