Reflection And Refraction Experiment Essay
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).
Reflection is defined as the reversal in direction of a particle stream or wave upon encountering a 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 to the ratio of velocities in the two media, or equivalent to the opposite ratio of the indices of refraction: During the course of analyzing our data, we calculated the index of refraction for the plastic lens and thereby the speed of light in the plastic.
The expected results that would need to occur to prove the validity of the Law of Reflection would be that when we conduct the experiment, the measure of the angle of incidence would have to be equal to the measurement of the angle of reflection, because this is what the Law of Reflection states.
The expected results that would need to occur to prove the validity of Snell's Law would be that as light passes the border between media, depending upon the relative refractive indices of the two media, the light will either be refracted to a lesser angle, or a greater one.
The materials that were needed for this experiment were: a table, a pencil, paper for notes, a laser, a platform, and a lens. The setup of the materials was as shown:
Initially, before we began our experiment, we used the adjustment screws on the back of the laser to make sure that the laser-line went straight down the "normal" line on the platform.
We aligned the flat side of the cylindrical lens along the line on the platform labeled "component." We were able to just barely see the edge of the "component line" under the edge of the lens. When it was precisely aligned, we saw that the laser followed the normal line all the way through the lens and across the platform, passing through the "zero" angle on both sides. We spent a minute adjusting the lens until we were satisfied and had it in the right position. The lens slipped at times during the experiment, and we recentered it on the "zero" angle.
Without moving the lens, we rotated the platform in both...
Loading: Checking Spelling
1629 words - 7 pages Refractive indexalso called Index Of Refraction, measure of the bending of a ray of light when passing from one medium into another. If i is the angle of incidence of a ray in vacuum (angle between the incoming ray and the perpendicular to the surface of a medium, called the normal; see figure), and...
The Physical Properties of Light Essay
1378 words - 6 pages The phenomenon of light is one that physical science as we know it simply cannot explain. For thousands of years, man has wondered what exactly light is, but despite all of the attentions that people have paid to this question in trying to solve it, a definitive answer has not yet been discovered. Today, a common theory has it that light is both a wave and a particle, and can be both at the same time because all particles have wave like...
An Experiment to investigate the lateral displacement of a ray of light through a rectangular block of a transparent material.
3426 words - 14 pages PLANNING: -Title: - An Experiment to investigate the lateral displacement of a ray of light through a rectangular block of a transparent material.Aim: - To investigate the lateral displacement for different angles and how the displacement depends on the angle of incidence when a ray of light enters the Perspex block.Scientific Background: -Refraction occurs when the speed changes when the lights travels from one...
Sir Issac Newton
709 words - 3 pages Sir Isaac Newton Isaac Newton was born on either December 25, 1642 or January 4, 1643 (no one could make up their mind). He was born in Woolsthorpe, near Grantham in Lincolnshire. Newton's father, who had died shortly before the birth of the brilliant mathematician/physicist was a yoeman farmer. It was intended that Newton should carry on the paternal farm. He was...
How have we revolutionized long distance communication
1146 words - 5 pages Shardul BansalMr. Hunter Physics 24/09/14How have we revolutionized long distance communication?Coaxial cable communication lines use electricity to transfer large amounts of data throughout the globe. Coaxial cable wires are practical in electrical wiring since they have high conductivity, high tensile strength and are extremely ductile. This makes it great for electrical applications but when transferring large amounts...
2145 words - 9 pages Hayes (1976) suggests gay speech is modulated by openness and gay type: secret, social and activist. Each gay type articulates lexicon and speech patterns differently. Secret gays or gay men that have yet to openly disclose their sexuality, articulate words and phrases differently than social or activist gays. This difference, Clark (1998) suggests is a ‘self-defense’ mechanism carefully designed to prevent social ostracism. Social gays and gay...
Effect of a Water Droplet on a Rainbow
1955 words - 8 pages The Formation of a Rainbow Sir Isaac Newton found that white light is composed of all wavelengths of visible light. White light is a mixture of all the colors of the spectrum, which are: Red, Orange, Yellow, Green, Blue, Indigo, and Violet. If we break up white light we can see the various components. A glass prism can be used to split white light into various wavelengths. This split occurs because each color in the white light has a different...
Visual Analysis of Davis's Photograph
704 words - 3 pages Memories can be as short-lived as the moments that created them. The recollection of events and the deterioration of memories over time is a constant process that cannot be stopped. This inevitable passing of memory is fused to the inevitable passing of human life. Emily Davis’s still life photograph of wineglasses is reflective and fragmented, allowing the image to act as a metaphor for this fleeting aspect of memory through its own...
Sir Isaac Newton
544 words - 2 pages Many people feel that scientist Isaac Newton is mentally ill. Most of us in Europe think that every day events are controlled by mysterious spirits. Some feel God is pulling all the strings. Now along comes this ill-tempered mathematician who has begun shattering everybody's world view. Isaac Newton's studies show that a measurable force called gravity governs how the
The Contributions of Isaac Newton
1019 words - 4 pages Sir Isaac Newton was a profound mathematician and physicist, one of the primary scientificintellects of all time. For almost 300 years, Newton has been known as the leader in scientific achievements of modern physical science as well as mathematical research. Dedicated to learning and experimenting, Newton also plunged into chemistry, early history of Western Civilization and theology, and a concentration of special studies in forms and...
FIBER OPTIC TECHNOLOGY
2350 words - 9 pages TABLE OF CONTENTS IMBA 6830 1 TABLE OF CONTENTS 2 Fiber Optic Technology 3 How The Fiber Works 4 Single-Mode and Multimode Fibers 5 Optical fiber Sizes 6 Fiber To The Houses 6 Optical Networks 7 Transmission Technology 8 - SONET 9 - ATM 10 Dense...