angles between the ray and the line normal to the surface in the two media. Physics. GOALS (1) To verify the law of reflection by measuring some incident and reflection angles off of a mirrored surface (2) To determine the relationship between the refraction of light and Snell's law. Procedure 2: Pencil in a Glass. 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. 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. The independant variable in this experiment was the strength of the solutions (75% Salt 25% Water etc.). (This procedure is a bit complex. 13 Pages. Equipment Glass plate Laser Optic bench Vernier caliper Angular translator Rotational stage Procedure Please print the worksheet for this lab. Due to refraction, the velocity of transmitted light is less than the velocity before it entered the medium. The objective of this experiment was to analyze the laws of reflection and refraction. In this experiment, the. Refraction of light is the bending of light as it passes from one medium to another (of different refractive index). their composition . For an air-glass boundary we can set the index of refraction of air equal to one. Tape a piece of graph paper to the screen. In this experiment‚ the independent variable is the angle of incidence‚ and the dependent variable is the angle of refraction. Practical Physics Basic Experiments with Ripple Tanks. 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). Hypothesis. index of refraction for the perspex is 1.50. Reflection, Refraction, and Diffraction Lab The purpose of this lab is to investigate wave interactions. Troposphere Refraction Lab 285 Words | 2 Pages. Lab 11 Reflection And Refraction Answer Key Whenever a light strikes the surface of some material at an angle, . Observe the pencil from the front of the glass. Label this pin "R1" (refraction #1). n glass = sinθ air /sinθ glass . 1460 Words. In front of the ray we place the mirror on the paper. Lab Preparation When light travelling through air encounters a different material, part of the light energy is reflected back into the air and part of it is transmitted into the glass, Experiment 11 consisted of four . 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. Physics of Water Waves Lab Report 123HelpMe. of the Law of Reflection and Snell's Law (Also known as the Law of Refraction). This zip file includes the labs for "Mirror Mirror", "Slime Dance", "Pencil Bend", "Roy G Biv" and "Color Mash". The resulting value of the refracted theta will then be equal to the critical angle. 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 . Since light has the maximum speed in vacuum, the index of refraction for any material is always greater than 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 law of reflection is a simple equation that is used in many applications. Physics questions and answers. In this experiment, the relationship between the angle of reflection, the angle of refraction, and the angle of incidence was established. The following experiment consists of two parts; the first part used fresh tap water while the second experiment used salty water.The real depth (RD) of the container was measured.The container was then filled with ordinary tap water and a metal pin placed at the bottom of the container. In order to describe reflection or refraction at a plane surface you need to measure angles with respect to a common reference line. Science. Lab Exercise 5: Reflection and Refraction. 18. When dealing with refraction, the angle of transmission is defined as the angle between the transmitted ray and the surface normal at that point. The reference line that is used is called a normal. The microscope is a very relevant optical tool which is used to observe and analyzed very small specimens.These specimens can be from animal, plants or human being oriented. The amount of light reflected or refracted depends on the angle at which you are looking relative to the surface. indexes of refraction of the two media. IV. In our case, water is the one which is more optically dense. Below are various procedures that you will conduct for this lab. 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. These happens due to the density of two media. The objectives of this lab was to confirm the laws of reflection and refraction. directions of propagation in terms of the angles to the normal. Reflection and Refraction (Names) (Institution Affiliation) (Date) Reflection Reflection refers to the change in course of the "wavefront" at a boundary between two . refraction to a medium with lower index of refraction. 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 . When light is shone off a spherical mirror, it will converge at a focal point. PART 3 - Total Internal Reflection Step 1. with the normal is called the angle of reflection (θ r), and the angle the refracted ray makes with the normal is called the angle of refraction (θ R). Reflection Lab Included, labeled and organized all parts of the lab report. θ 1 θ 2 =. 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. Answer all questions. DISCUSSION As observed from the experiment, the angle of incidence was equal to the angle of reflection for the three cases. For total internal reflection to occur, nr must be greater than ni. Class IIIb Lasers Lab Report 658 Words | 3 Pages. CHAPTER4:EXPERIMENT2 where θ 2 is the angle of refraction of the ray that is transmitted into the second medium. With this experiment we begin the study of light and its interaction with various optical components. Given the value of k you measured in the first part of the experiment, calculate the expected value of the resonant frequency. Reflection, Refraction and Polarization Introduction Refraction When a ray of light strikes the surface of a piece of transparent material the beam is split—part of the beam is reflected from the surface, while the rest is transmitted into the material. n1 n2 =. Margaret Wettergreen PHY 2049L 04/03/2014 Lab #11 - Dispersion from a Prism and Index of Refraction Purpose: The purpose of this lab was to study the dispersion spectrum from a prism and to measure the index of refraction of the prism. This gave us a percent error of 3.3%. 2. Your goal in this investigation is to develop one or more rules that you can use to predict the behavior and path of the reflected Reflection and Refraction Experiment. 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). THEORY: Optics Reflection And Refraction Lab Report Conclusion. In this lab, the "laws" of reflection and refraction are to be studied by using the equivalence of these two ideas. Snell's Law Lab Report. In Figure 1 you see a ray of light that is incident on a plane surface. and molecules which affect the radio waves between the satellite and the receiver. in your lab report.) 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. where. Open a Microsoft Word document to keep a log of your procedures, results and discussions. Investigation 1.2 Angles of incidence and reflection a. REFLECTION AND REFRACTION 80 surface of the mirror. Discussion The light bends or refracts when light travels from one medium to another. Using a ruler, find the centre of the flat side of a piece of Lucite. experiment reflection, refraction and total internal . Tape a plain sheet of paper to the piece of cardboard supplied. The angle of refraction is the angle between the transmitted ray and the normal. The other variables were controlled as best as could be expected. In this experiment you will trace the path of a light ray through a block of glass and measure the index of refraction of the glass. 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. Theory*C:*Dispersion* Wehaveallseenap rismor%looked%up%in%the%sky%to%witness%thebeautyofarainbow. Materials: Semi-circular piece of Lucite, polar graph paper, ray box Procedure: PART A: 1. Place the mirror on the solid line on Sheet 1 from the last page of the lab. CHAPTER 9. Snell's law therefore yields for the index of refraction of the glass. $9.50. At the angle where the refracted rays disappear, and only reflection takes place at the inner face, stop rotating the trapezoid Step 2. Support the mirror by fastening it to a wooden . Take the pencil and immerse it vertically in the water. 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 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. 2. The experiment consisted of two parts. The law of reflection states that the angle of reflection and angle of incidence are equal, with . The reflected ray was also in the same plane where the incident ray was. Snell's Law relates the indices of refraction of the two media to the. I decided to add water and of course made the material transparent and enabled reflection and refraction. The microscope used a combination of ocular and objective lenses that produce magnified images of the small objects. Dispersion is defined to . divided by the speed of light in the medium. A well-organized series of 22 field-tested labs designed to be much more authentic for instruction than . Reflection is defined as the reversal in direction of a particle stream or wave upon encountering a boundary. Reflection And Refraction In Media. and argument development and evaluation to double-blind peer review and report revision. Draw the light rays as you did in the previous . This is the measured resonance frequency. Experiment A consisted of observing one's self in a mirror and determining the mathematical form of the Law of Reflection. Although this is easy for a flat surface (it is just the line that is perpendicular to the . 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. Class IIIb Lasers Lab Report 658 Words | 3 Pages. Not actually a UFO. Reflection And Refraction Lab Report Pdf Download Author: www.sanmiguel-bohol.gov.ph Subject: Reflection And Refraction Lab Report Keywords: Reflection And Refraction Lab Report, pdf, free, download, book, ebook, books, ebooks Created Date: 6/8/2022 6:15:33 AM Episode 317 Reflection and refraction of waves tap iop org. 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. The objective of this experiment is to study the path of light rays due to reflection and refraction at plane surfaces and to verify the Law of Reflection in a plane mirror and Snell's Law of Refraction. This lab report gives an analysis of the study taken regarding the two behaviors, that is, refraction and dispersion of light. Interference in a Ripple Tank Optics For Kids. . 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. (θi) against (θr) Discussion and Conclusions: The entire experimental results indicate that there is a correlation between the angle of incidence, the angle of refraction . 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. Equipment List Laser pointer, a lab-jack, an optics kit which includes: a ray table, a at re Address the points highlighted in blue. Reflection of Light from a Mirror. Whenever a light strikes the surface of some material at an angle, part of the wave is reflected and part is transmitted (or absorbed). The lower the zenith angle the more affected is the tropospheric refraction. 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. Procedure: Fill the glass about 2/3 full of water. Reflection Refraction and Diffraction. This causes the light's speed to increase or decrease . (Graph paper and tape are in the lab room.) Reflection And Refraction Lab Report Pdf Download Author: www.sanmiguel-bohol.gov.ph Subject: Reflection And Refraction Lab Report Keywords: Reflection And Refraction Lab Report, pdf, free, download, book, ebook, books, ebooks Created Date: 6/8/2022 6:15:33 AM Thus, the second law of reflection states C = speed of light in a vacuum More about Reflection and Refraction Lab . Reflection, Refraction, and Total Internal Reflection Lab Report Example. Use the light ray box with a single slit to send a ray of light on to the mirror. This is to say, we find the critical angle when the value of the incident theta is equal to 90° and thus sin(θi) is equal to 1. Handle them by the edges. Compared to the angle of incidence, the angle of refraction was smaller. Rotate the trapezoid slowly and watch as the refracted rays get closer and closer to the outer surface of the trapezoid. This is an . Reflection and Refraction Lab Page 3 Seeing reflection and refraction at the same time Both refraction and reflection often occur when light hits a boundary between materials such as the boundary between glass and air. (In other words, is there a peak in Graph 2? Reflection and Refraction Goal: To study the reflection of light by a flat surface and to study the refraction of light through straight and curved surfaces. The incident ray, the normal and the refracted ray all lie on the same plane. In the first part of this lab, we will investigate the basic principles of ray optics, Snell's law and the Law of Reflection. If a line is normal to the surface at the point where the light . Observations are accurate. Place a pencil (or straw) in a clear glass of water. Procedure: The light source is placed on a blank sheet of paper and turned the wheel to select a single ray. Place the lenses near one end of the optical bench and the screen at the other end, as shown below. 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. Move the pencil in a circular motion around the inside of the glass while viewing the motion from the side of the glass (as shown in the side view below and top view ). In this experiment, the angle of incidence was equal to the angle of reflection. Draw a line across the center of the paper and place the mirror along this line. Also measure the lateral displacement. 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 .