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. Procedure: The light source is placed on a blank sheet of paper and turned the wheel to select a single ray. Science. Label this pin "R1" (refraction #1). The law of reflection states that the angle of reflection and angle of incidence are equal, with . Draw a line across the center of the paper and place the mirror along this line. In addition to carrying out the procedures, you need to write a formal lab report. In this experiment, the angle of incidence was equal to the angle of reflection. Theory: Snell's law relates the angle of incidence and refraction to the ratio of the velocity of the wave in . DISCUSSION As observed from the experiment, the angle of incidence was equal to the angle of reflection for the three cases. 1460 Words. This causes the light's speed to increase or decrease . The reflected ray was also in the same plane where the incident ray was. The lower the zenith angle the more affected is the tropospheric refraction. 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. Is there a frequency where the amplitude is at a maximum? Auxiliary Materials: The downloadable protractor listed at the above web page is provided to students for inclusion in the Data section of their lab notebook. For refraction, Snell's Law will be tested. Not actually a UFO. Answer all questions. Mathematically stated: = Snell's Law of Refraction Two things happen when light reaches a boundary between two transparent mediums, reflection and refraction. where. 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. 2. 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 The method used to achieve this was through the use of a glass block, source of light, and meter sticks. 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, APPARATUS: Drawing board, sheet of paper, board pins, rectangular glass slab. The growth of the plants over time was the dependant variable (The dependant variable is the total growth). 1. Figure 6.1: Refraction overview Snell's law quantifies the relationship that is observed in Figure 6.1: n 1∙ sin θ 1 = n 2∙ sin θ 2 (6.1) where n 1 is nthe index of refraction of medium 1, 2 is the index of refraction medium 2, θ 1 is the angle that the light ray makes with respect to the . Due to refraction, the velocity of transmitted light is less than the velocity before it entered the medium. ection and refraction of light will be studied. experiment reflection, refraction and total internal . 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. Reflection and refraction are two commonly observed optical properties of light. Thus, the second law of reflection states C = speed of light in a vacuum In front of the ray we place the mirror on the paper. The incident ray, the normal and the refracted ray all lie on the same plane. CHAPTER4:EXPERIMENT2 where θ 2 is the angle of refraction of the ray that is transmitted into the second medium. Investigation 1.2 Angles of incidence and reflection a. Hypothesis. Using a ruler, find the centre of the flat side of a piece of Lucite. $9.50. Observe the pencil from the front of the glass. By completing this lab, one would be able to determine if the index of refraction depends on the color of . Dispersion is defined to . 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. Zip. angles between the ray and the line normal to the surface in the two media. Week one Discussion question 2; ATI RN Comprehensive Predictor 2019 Form A B C zbh1u6 . refraction to a medium with lower index of refraction. Determine the path of the light before it strikes the mirror and after reflection from the mirror. These happens due to the density of two media. At the angle where the refracted rays disappear, and only reflection takes place at the inner face, stop rotating the trapezoid Step 2. Snell's Law Lab Report. Class IIIb Lasers Lab Report 658 Words | 3 Pages. Reflection, Refraction, and Total Internal Reflection Lab Report Example. 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. 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 is defined as the reversal in direction of a particle stream or wave upon encountering a boundary. 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 law of reflection states that the angle of reflection . 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. The materials needed to perform the lab were a semi-circular disc filled with water, a protractor, a laser, and tape. Ripple Tank Project by Caroline Ward on Prezi. SNC 2DI - REFRACTION OF LIGHT (Snell's Law) LAB Purpose: To observe the refraction of light as it passes from air into Lucite (plexiglass) and to calculate the index of refraction for Lucite. Optics Reflection And Refraction Lab Report Conclusion. Place a pencil (or straw) in a clear glass of water. The refractive index Aim: The aim of this experiment is to find the refractive index of a glass prism. Look through the eye lens, and focus the image of the graph paper by moving the objective. In our case, water is the one which is more optically dense. Sorry. Also measure the lateral displacement. 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. In this experiment, the. We need to see the incident and reflected rays, that is why we place the plane surface of the mirror in the path of the incident ray at an appropriate angle. 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. If a line is normal to the surface at the point where the light . Materials Ray Box with comb Semicircular plastic block Procedure Placed the semicircular plastic block on the centre of a blank sheet of paper. Analysis/Questions: 1. It. 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 . Equipment List Laser pointer, a lab-jack, an optics kit which includes: a ray table, a at re 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). 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 ). index of refraction for the perspex is 1.50. 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. Equipment Glass plate Laser Optic bench Vernier caliper Angular translator Rotational stage Procedure Please print the worksheet for this lab. 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 Refraction of light is the bending of light as it passes from one medium to another (of different refractive index). Unformatted text preview: CENTRE OF FOUNDATION STUDIES FOUNDATION PHYSICS II LABORATORY REPORT Experiment REFLECTION OF LIGHT Name NURAIN FARHANAH BINTI RIZMAN Student ID 2020495044 Class PI080S33 Lab instructor's name MISS PUTERI NOOR SAFURA BINTI MEGAT MAHMUD Date of experiment 2 FEBRUARY 2021 Marks Comment ABSTRACT The purpose of this experiment is to justify the law of reflection for a . Data section includes an organized documentation of observations for both parts of the lab (The Broken Pencil and the Marching Soldiers). The experiment was repeated for the other angles of incidences (30°, 45° and 60°). IV. Stacy McGuire. Reflection Lab Included, labeled and organized all parts of the lab report. (This procedure is a bit complex. 13 Pages. Handle them by the edges. n1 n2 =. Reflection of Light from a Mirror. 2)The incident ray, the refracted ray and the normal to the surface, all lie in the sameplane. Reflection, Refraction, and Diffraction Lab The purpose of this lab is to investigate wave interactions. divided by the speed of light in the medium. 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. Discussion The light bends or refracts when light travels from one medium to another. (Graph paper and tape are in the lab room.) In this experiment‚ the independent variable is the angle of incidence‚ and the dependent variable is the angle of refraction. The values we got for the index refraction of plastic were 1.45 using Snells law. their composition . REFLECTION AND REFRACTION 80 surface of the mirror. This lab report gives an analysis of the study taken regarding the two behaviors, that is, refraction and dispersion of light. Theory*C:*Dispersion* Wehaveallseenap rismor%looked%up%in%the%sky%to%witness%thebeautyofarainbow. of the Law of Reflection and Snell's Law (Also known as the Law of Refraction). Scoring Rubric: RM1. 2. 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 . 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 1. The objectives of this lab was to confirm the laws of reflection and refraction. 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). . 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. 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. the lab. Place the mirror on the solid line on Sheet 1 from the last page of the lab. θ 1 θ 2 =. If the index of refraction for water is n 1 = 1.3, will the critical angle for total internal reflection be greater than or smaller than the critical angle you recorded for glass? I decided to add water and of course made the material transparent and enabled reflection and refraction. Snell's Law relates the indices of refraction of the two media to the. In this experiment, the relationship between the angle of reflection, the angle of refraction, and the angle of incidence was established. Rotate the trapezoid slowly and watch as the refracted rays get closer and closer to the outer surface of the trapezoid. Use the light ray box with a single slit to send a ray of light on to the mirror. 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. Onheotherhand,allofushaveenjoyedthesunlightorthe convenience%ofan% Draw the light rays as you did in the previous . 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 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. With this experiment we begin the study of light and its interaction with various optical components. 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 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. 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 . Reflection and Refraction Experiment. A well-organized series of 22 field-tested labs designed to be much more authentic for instruction than . The law of reflection is a simple equation that is used in many applications. 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. 18. Snell's law therefore yields for the index of refraction of the glass. Science. 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. Caution: Avoid putting fingerprints on the surfaces of the optical elements. Conclusion/Discussion n1 sin θ1 = n2 sin θ2. 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 . Refraction Action Lab Included, labeled and organized all parts of the lab report. Compared to the angle of incidence, the angle of refraction was smaller. Part 1: Reflection and Refraction. (In other words, is there a peak in Graph 2? Reflection from a plane mirror Wave phenomena ripple tank experiments U of T Physics. Reflection Refraction and Diffraction. The objective of this experiment was to analyze the laws of reflection and refraction. refraction as enters that transparent medium. Rainbows are produced by a combination of refraction and reflection and involve the dispersion of sunlight into a continuous distribution of colors. The reference line that is used is called a normal. Light will converge at a real focal point in front the concave mirror, and light will converge at a virtual . This is the measured resonance frequency. . A. Light and Waves Labs. Address the points highlighted in blue. A normal is a line that is perpendicular to a surface. The other variables were controlled as best as could be expected. For re ection, exper-iments will be done to determine if the angle of re ection is equal to the angle of incidence for a beam of light incident on a at surface. This zip file includes the labs for "Mirror Mirror", "Slime Dance", "Pencil Bend", "Roy G Biv" and "Color Mash". Tape a piece of graph paper to the screen. 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. n glass = sinθ air /sinθ glass . Given the value of k you measured in the first part of the experiment, calculate the expected value of the resonant frequency. 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. The angle of refraction is the angle between the transmitted ray and the normal. Physics of Water Waves Lab Report 123HelpMe. side view top view Troposphere Refraction Lab 285 Words | 2 Pages. For total internal reflection to occur, nr must be greater than ni. Physics. 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). In the first part of this lab, we will investigate the basic principles of ray optics, Snell's law and the Law of Reflection. in your lab report.) and molecules which affect the radio waves between the satellite and the receiver. Place the last pin several centimeters from the curved side of the box, so that it appears to line up with the other 2 pins as you look through the liquid. Below are various procedures that you will conduct for this lab. Procedure 2: Pencil in a Glass. Experiment A consisted of observing one's self in a mirror and determining the mathematical form of the Law of Reflection. 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. For some reason though I can't see . Support the mirror by fastening it to a wooden . This was due to the optical densities of two media. Physics questions and answers. The independant variable in this experiment was the strength of the solutions (75% Salt 25% Water etc.). The experiment consisted of two parts. Episode 317 Reflection and refraction of waves tap iop org. Procedure: Fill the glass about 2/3 full of water. Lab Exercise 5: Reflection and Refraction. When light is shone off a spherical mirror, it will converge at a focal point. 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. The amount of light reflected or refracted depends on the angle at which you are looking relative to the surface. 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. A mirror was placed on top of the container so that the . Physics questions and answers. In this session you will explore refraction at a plane interface and image formation by reflection from spherical surfaces. 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. and argument development and evaluation to double-blind peer review and report revision. The index of refraction is defined as the speed of light in vacuum. Materials: Semi-circular piece of Lucite, polar graph paper, ray box Procedure: PART A: 1. 3. The microscope used a combination of ocular and objective lenses that produce magnified images of the small objects. Class IIIb Lasers Lab Report 658 Words | 3 Pages. Experiment 11 consisted of four . In order to describe reflection or refraction at a plane surface you need to measure angles with respect to a common reference line. For an air-glass boundary we can set the index of refraction of air equal to one. 2. Therefore, with the acquired results, it can be observed that the angle of refraction is smaller than the angle of incidence. PART 3 - Total Internal Reflection Step 1. (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 . The resulting value of the refracted theta will then be equal to the critical angle. Use the information below to help guide you through writing your lab report. Reflection and Refraction Experiment. The ratio of the sin of the sin of the angle of incidence to the sin of the angle of refraction is a constant. Tape a plain sheet of paper to the piece of cardboard supplied. 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. INTRODUCTION. Reflection is defined as the reversal in direction of a particle stream or wave upon encountering a boundary. 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. Physics. 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 .
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