reflected ray. The ‘normal’ is a line drawn at right angles to the mirror surface at the point of incidence. The angle between incident ray and normal is called the angle of incidence. The angle between reflected ray and normal is called the angle of reflection.Laws of reflection of light: The incident ray‚ the reflected ray‚ and the normal {at the point of incidence}‚ all lie in the same plane. The angle of reflection is always equal to the angle of incidence. Regular Reflection and Diffuse
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boundary. The law of reflection states that the angle of reflection and angle of incidence are equal‚ with each angle being measured from the normal to the boundary: Refraction is defined as the bending of light that takes place at a boundary between two materials having different indices of refraction due to a change in the speed of light as it passes from one medium to another. The Law of Reflection (Snell’s Law) states that the ratio of the sines of the angles of incidence and refraction is equivalent
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Below there are three objects a mirror‚ a glass block and a prism‚ it shows and tells you underneath each of the objects picture a description of what happens when light ray is shone on it. The source of light is a light bulb from a ray box. If a beam of light of one colour is shone through a prism‚ the direction of the beam is changed by the prism. This is because the two faces of the prism through which the light passes are not parallel. If white light is used the prism splits up the light into
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go straight when we tested on the angle board. 2. As the source of light beam was getting farther away from the slit‚ the beam becomes narrower and shorter in addition to fading. This is because light particles escape more when they travel to go through the slit. B. Law of reflection Angle of incidence is the angle formed by a ray incident on a surface and a perpendicular to the surface at the point of incidence. Angle of reflection is the angle between the reflected ray and
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Mechanics 3-Aerofoil Lab Report Introduction This report aims to investigate the effect the angle of attack of an aerofoil has on the air flow around it. This was done by recording the lift and drag forces the aerofoil experienced when positioned at different angles of attack. The experimental lift force the aerofoil experienced when positioned at different angles of attack was then compared with theoretical values. An attempt was made to explain any discrepancies between experimental
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The Refraction Of Light Through Different Media Mr. Dechene’s SNC2D January 21‚ 2013 Jordyn D. Testable Question: What effects do different mediums have on the angle of light? Hypothesis: If the light goes through different mediums‚ then the light will bend because it is slowing down as it passes through the medium. Equipment: Semicircular plastic dish Polar graph paper Ray box with single slit Water Syrup Experimental Design: A ray box with a single
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reflecting surface at the point of incidence is called the Normal. 4. Angle of Incidence – The angle which the incident ray makes with the normal at the point of incidence. It is denoted by the letter ‘i’. 5. Angle of Reflection – The angle which the reflected ray makes with the Normal at the point of incidence. It is denoted by the letter ‘r’. Laws of reflection – i. The angle of incidence ‘i’ is equal to the angle of reflection ‘r’. ii. The incident ray‚ the reflected ray and
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definition of the “critical angle of incidence”. 2. Using the special apparatus provided‚ measure the angles of refraction corresponding to a wide range of angles of incidence. Remember‚ the angles of incidence and refraction are always measured from a normal line. light source transparent plastic block Apparatus arranged to verify Snell’s Law and measure refractive index Adjust the position of the light source carefully to ensure that when the angle of incidence is zero‚ the angle of refraction is also
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Repeat the process and put another pin. Do this for all the points. After that draw a line from each point to the pin. Then draw a straight line passing each of the same numbered points of the removed glass . Using a Protractor find how much each angle equals from the normal ‚and fill the data in a table then do the calculations and graphing needed shown in the data processing . Data collection: # 1 2 3 4 5 6 i1 30 40 50 60 65 70 i2 30 40 50 50 55 65 Graph of sin
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tunnel was operated at a nominal 17 m/s during the coefficient measurements‚ a Reynold’s number of about 232‚940. The airfoil‚ with an 8 in chord‚ was analyzed at 0‚ 5‚ 10 and 15 degree angles of attack. The phenomenon known as hysteresis with regards to stall conditions was also observed by varying the angle of attack and wind tunnel velocity. ii TABLE OF CONTENTS Page List of Figures iv List of Tables iv Nomenclature v Chapter I. Introduction 1 II. Apparatus and Instrumentation 2
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