reflection and refraction lab report discussion
directions of propagation in terms of the angles to the normal. Experiment has shown (and will show again in this lab) that the angle of the reflected light is equal to the angle of the incident light . In Figure 1 you see a ray of light that is incident on a plane surface. Reflection and Refraction (Names) (Institution Affiliation) (Date) Reflection Reflection refers to the change in course of the "wavefront" at a boundary between two . The law of reflection is a simple equation that is used in many applications. The first law of reflection = % states that when the incident ray hit a smooth plane surface, creating an angle called the incidence angle, it where: n = index of refraction will lie on the same plane as the normal line and its v = velocity of the medium reflected ray. 10 The values of the angles 'I' and 'r' were tabulated and the values of sin i and sin r were calculated OBSERVATION / RESULTS: Angle of incidence, i 15 30 45 60 Angle of reflection, r Sin i Sin r 10 19 25 43 0.26 0.50 0.71 0.87 . N1 N2 Draw a line across the center of the paper and place the mirror along this line. This log will become your lab report. This was due to the optical densities of two media. Refraction is described mathematically by Snell's law . Data section includes an organized documentation of observations for both parts of the lab (The Broken Pencil and the Marching Soldiers). At what frequency is the peak?) use a ruler, or some form of straight edge and include these sketches in your lab report as figures to which you can refer in your conclusion, as necessary. This gave us a percent error of 3.3%. In this experiment, the. Transcribed image text: LAB 5 REFLECTION AND REFRACTION Purpose In this lab we are going to investigate the law of reflection In addition, we are going to verify Snell's law Discussion Light can either reflect or refract when it is incident to a surface. . Science. This zip file includes the labs for "Mirror Mirror", "Slime Dance", "Pencil Bend", "Roy G Biv" and "Color Mash". DISCUSSION As observed from the experiment, the angle of incidence was equal to the angle of reflection for the three cases. The labs for the light and waves unit were created to teach students from K - 8 about the color, light, waves, reflection, refraction and absorption. INTRODUCTION. Determine the path of the light before it strikes the mirror and after reflection from the mirror. The independant variable in this experiment was the strength of the solutions (75% Salt 25% Water etc.). n1 sin 1 = n2 sin 2. Snell's Law relates the indices of refraction of the two media to the. Refraction occurs when light enters a more or less optically dense medium, which therefore has a different refractive index (measure of the velocity light can travel at in the medium compared to in a vacuum in which it can travel at 2.9 x 108ms-1). The values we got for the index refraction of plastic were 1.45 using Snells law. For an air-glass boundary we can set the index of refraction of air equal to one. . Refraction Action Lab Included, labeled and organized all parts of the lab report. It. The materials needed to perform the lab were a semi-circular disc filled with water, a protractor, a laser, and tape. T he law of reflection states that the angle of incidence is equal to the angle of reflection and these angles and the normal lie on the same plane. in your lab report.) Looking through the liquid in the box, align your eye so that you see the two pins on the other side of the box in line with each other. Figure 6.1: Refraction overview Snell's law quantifies the relationship that is observed in Figure 6.1: n 1 sin 1 = n 2 sin 2 (6.1) where n 1 is nthe index of refraction of medium 1, 2 is the index of refraction medium 2, 1 is the angle that the light ray makes with respect to the . Theory: Snell's law relates the angle of incidence and refraction to the ratio of the velocity of the wave in . REFRACTION THROUGH GLASS SLAB AIM: To trace the course of different rays of light through a rectangular glass slab at different angles of incidence, measure the angle of incidence, refraction and verify Snell`s law. Snell's law therefore yields for the index of refraction of the glass. THEORY: This is the measured resonance frequency. Not actually a UFO. 2. The law of reflection states that the angle of reflection and angle of incidence are equal, with . Goals: (1) Determine the point of divergence for a set of light rays (2) Measure and verify the law of reflection (3) Measure and verify the refraction of light Refraction of Light Lab Answers Refraction of Light PART I This laboratory was designed to investigate the behaviour of light as it travels through a less dense into a denser medium. In this experiment we shall study the limit where the wave nature of light can be neglected and we can consider a train of light waves to be a straight line, or ray. In this experiment the independent variable is the angle of incidence and the dependent variable is the angle of refraction. Rotate the trapezoid slowly and watch as the refracted rays get closer and closer to the outer surface of the trapezoid. Reflection, Refraction and Polarization Introduction Refraction When a ray of light strikes the surface of a piece of transparent material the beam is splitpart of the beam is reflected from the surface, while the rest is transmitted into the material. Observe the pencil from the front of the glass. Procedure 2: Pencil in a Glass. Reflection Lab Included, labeled and organized all parts of the lab report. 2)The incident ray, the refracted ray and the normal to the surface, all lie in the sameplane. Rotate the glass and make observations. Compared to the angle of incidence, the angle of refraction was smaller. and refraction lab report 1 pdf free download, refraction of light physics brock, reflection and refraction experiment essay example for, part a the law of reflection department of physics and, phy 124 optics reflection refraction and images stony, refraction of light experiment dispersion of light In this session you will explore refraction at a plane interface and image formation by reflection from spherical surfaces. the lab. Label this pin "R1" (refraction #1). Class IIIb Lasers Lab Report 658 Words | 3 Pages. Tape a piece of graph paper to the screen. The ratio of the sin of the sin of the angle of incidence to the sin of the angle of refraction is a constant. When light is shone off a spherical mirror, it will converge at a focal point. The experiment was repeated for the other angles of incidences (30, 45 and 60). The purpose of this experiment was to test the validity of the Law of Reflection and Snell's Law (Also known as the Law of Refraction). When light rays hit the surface of a material, some of them are reflected. The amount of light reflected or refracted depends on the angle at which you are looking relative to the surface. CHAPTER4:EXPERIMENT2 where 2 is the angle of refraction of the ray that is transmitted into the second medium. experiment reflection, refraction and total internal . Practical Physics Basic Experiments with Ripple Tanks. Equipment List Laser pointer, a lab-jack, an optics kit which includes: a ray table, a at re 13 Pages. (Graph paper and tape are in the lab room.) This is an . More about Reflection and Refraction Lab . The index of refraction shows how much faster light propagates in a vacuum than in that material: n= c v Where 'c' is the speed of light in a vacuum and 'v' is the speed of light in the material. $9.50. In our case, water is the one which is more optically dense. A mirror was placed on top of the container so that the . Reflection and Refraction Lab Abstract: In this experiment, the concepts of reflection and refraction were investigated through numerous experiments; in each experiment, reflection or refraction was observed in multiple ways. Wave phenomena ripple tank experiments U of T Physics. Reflection is defined as the reversal in direction of a particle stream or wave upon encountering a boundary. 1 2 =. n glass = sin air /sin glass . (Bend down so the glass is at eye level). For more conclusive results the experiment was done in a dark room. Reflection, Refraction, and Total Internal Reflection Lab Report Example. Conclusion/Discussion For some reason though I can't see . Reflection Refraction and Diffraction. Therefore, with the acquired results, it can be observed that the angle of refraction is smaller than the angle of incidence. 2. Week one Discussion question 2; ATI RN Comprehensive Predictor 2019 Form A B C zbh1u6 . Discussion The light bends or refracts when light travels from one medium to another. At the angle where the refracted rays disappear, and only reflection takes place at the inner face, stop rotating the trapezoid Step 2. Lab 11 Reflection And Refraction Answer Key Whenever a light strikes the surface of some material at an angle, . Investigation 1.2 Angles of incidence and reflection a. The index of refraction is defined as the speed of light in vacuum. Take the pencil and immerse it vertically in the water. Refraction of light is the bending of light as it passes from one medium to another (of different refractive index). Pre-Lab Discussion Laser Safety Lasers in the classes IIIa and IIIb are capable of causing damage to the eye when a laser in one of these classes is directly exposed to a person's eye, or in some cases, when reflecting off of a smooth surface. 2. index of refraction for the perspex is 1.50. Goals: (1) Determine the point of divergence for a set of light rays (2) Measure and verify the law of reflection (3) Measure and verify the refraction of light Introduction. a. Open a Microsoft Word document to keep a log of your procedures, results and discussions. Thus, the second law of reflection states C = speed of light in a vacuum Troposphere Refraction Lab 285 Words | 2 Pages. Reection from a plane mirror Address the points highlighted in blue. This is an example of how the lab report should be set up and what information is required in each section. Pre-Lab Discussion Laser Safety Lasers in the classes IIIa and IIIb are capable of causing damage to the eye when a laser in one of these classes is directly exposed to a person's eye, or in some cases, when reflecting off of a smooth surface. For total internal reflection, notice that the light strikes the curved side first, emerging on the flat side of the cylindrical lens. The growth of the plants over time was the dependant variable (The dependant variable is the total growth). Place a pencil (or straw) in a clear glass of water. Light will converge at a real focal point in front the concave mirror, and light will converge at a virtual . In the first part of this lab, we will investigate the basic principles of ray optics, Snell's law and the Law of Reflection. divided by the speed of light in the medium. In front of the ray we place the mirror on the paper. refraction as enters that transparent medium. Due to the amount of gas present in this area group velocity decreases and the Zenith angle contributes to the troposphere refraction. of the Law of Reflection and Snell's Law (Also known as the Law of Refraction). With this experiment we begin the study of light and its interaction with various optical components. Materials: Semi-circular piece of Lucite, polar graph paper, ray box Procedure: PART A: 1. This change in direction of the transmitted light is refraction Section te Student Name Report on Laboratory Experiment "Reflection and Refraction of Light" Table I: Reflection of light Angle of incidence, 45 50 degrees 70 75 80 Angle of degrees Table II: Refraction of light Angle of degrees Angle of 10 20 30 40 50 60 70 80 refraction, degrees . The reflection and refraction of the sound waves through the subseafloor will provide important information about the properties of the different layers in the subsurface (e.g. Experiment A consisted of observing one's self in a mirror and determining the mathematical form of the Law of Reflection. . Dispersion is defined to . Mathematically stated: = Snell's Law of Refraction Two things happen when light reaches a boundary between two transparent mediums, reflection and refraction. refraction to a medium with lower index of refraction. Tape a plain sheet of paper to the piece of cardboard supplied. According to the Law of Reflection, the angle of incidence will equal the angle of reflection when light is shone off a flat reflecting surface. The law of reflection states that the angle of incidence is equal to the angle of reflection, or, stated mathematically, Although this relation is simple, you must always be careful to find the correct normal line that intersects the point of incidence. Reflection And Refraction In Media. Stacy McGuire. Experiment 11 consisted of four . Reflection / refraction for water material not working. Since light has the maximum speed in vacuum, the index of refraction for any material is always greater than 1. This is to say, we find the critical angle when the value of the incident theta is equal to 90 and thus sin(i) is equal to 1. Procedure: Fill the glass about 2/3 full of water. The reference line that is used is called a normal. Use the light ray box with a single slit to send a ray of light on to the mirror. Made some progress with my voxel terrain in spite of the recent UV mapping issues, now I'm running into a smaller problem I can't seem to understand. PART 3 - Total Internal Reflection Step 1. By completing this lab, one would be able to determine if the index of refraction depends on the color of . This causes the light's speed to increase or decrease . More about Reflection and Refraction Lab . Report on Laboratory Experiment "Reflection and Refraction of Light" Table 1: Reflection of light Angle of incidence, degrees 45 45 50 55 60 65 70 75 Angle of reflection, degrees 45 50/55/60/65 70 75/80 Table II: Refraction of light Angle of incidence, degrees 10 20 30 40 50 60 80 70 Angle of .