From a scientific point of view‚ this phenomenon is called refraction. It is because the light moves faster in the air than in the water‚ so when the light enters the water‚ it bends away from its original path‚ and it makes the the stick looks bent. Instead of saying this is a sense data‚ I would rather conclude
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HISTORY OF FIBER OPTICS * In 1840‚ Daniel Colladon and Jacques Babinet demonstrated the principle of guiding light by refraction. * It was followed by a public demonstration by John Tyndal in 1852. In 1870‚ Tyndal wrote about the property of total internal reflection in his book about the nature of light. * In 1880‚ Alexander Graham Bell and Sumner Tainter invented the Photophone‚ a device capable of transmitting sound waves over beam of light. This is considered as mankind’s first attempt
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Exam Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A floating leaf oscillates up and down two complete cycles in one second as a water wave passes by. The wave’s wavelength is 10 meters. What is the wave’s speed? A) 2 m/s B) 40 m/s C) 10 m/s D) 20 m/s E) more than 40 m/s 2) The Doppler effect is characteristic of A) light waves. B) sound waves. C) water waves. D) all of the above choices E) none
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Grade 10 Review For Final Exam - Solutions CHEMISTRY – CHEMICAL PROCESSES QUESTIONS 1. Briefly describe the tests for the following gases: (a) carbon dioxide turns limewater milky - precipitates (b) oxygen causes glowing splint to re-ignite (c) hydrogen causes burning splint to produce a pop sound. 2. Sketch a periodic table and label the main regions of the table. See pg 184 3. Draw Bohr diagrams for the following atoms: (a) boron (b) sulphur (c) calcium. [pic]
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Hyugen’s principle Every point on an advancing wave front provides a new point of source for the wave Predicts reflection‚ refraction und diffraction Maxwell’s equations All related equations and observations to electricity and magnetism into 4 little equations The electromagnetic spectrum The product of wavelength and frequency is speed is the speed of the wave: Photon Relationship between frequency and photon energy Planck’s Assumption:
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earth. A microscope must be properly cleaned before use and storage. The different objectives allow for a range of observations. At the highest objectives‚ the resolution can easily be lost which is why the oil immersion lens is used to minimize refraction. While observing specimens‚ both dead and active‚ their shapes and arrangements can be observed. For example‚ the oil immersion lens can be used to observe the active Streptobacillus bacteria in yogurt. Purpose: The purpose of this lab was
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of Euclid‚ and seven of his treatises are known to have existed only through references made to them by other authors. Pappus of Alexandria mentions On Sphere-Making and another work on polyhedra‚ while Theon of Alexandria quotes a remark about refraction from the now-lost Catoptrica.[b] During his lifetime‚ Archimedes made his work known through correspondence with the mathematicians in Alexandria. The writings of Archimedes were collected by the Byzantine architect Isidore of Miletus (c. 530 AD)
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High energy laser transmission through large core optic cables By christopher Kennedy A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in CREOL – College of Optics and Photonics at the University of Central Florida Orlando‚ Florida Summer Term 2013 Major Professors: Michael Bass ©2013 Christopher Kennedy ABSTRACT ACKNOWLEGEMENTS
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CHAPTER 5: LIGHT In each of the following sentences‚ fill in the bracket the appropriate word or words given below. solid‚ liquid‚ gas‚ vacuum‚ electromagnetic wave‚ energy 1. Light is a form of ( ). 2. It travels in the form of ( ) 3. In can travel through ( ) 4. It travels fastest in the medium of ( ) 5. Light of different colours
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Xxx.comTheories of light In the seventeenth century two rival theories of the nature of light were proposed‚ the wave theory and the corpuscular theory. The Dutch astronomer Huygens (1629-1695) proposed a wave theory of light. He believed that light was a longitudinal wave‚ and that this wave was propagated through a material called the ’aether’. Since light can pass through a vacuum and travels very fast Huygens had to propose some rather strange properties for the aether: for example; it must
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