refract d. deflect e. absorb 3. What does LASER stand for? a. Light Amplification by Stimulated Emission of Radiation b. Light Amplification of Spreading Emission Reflection c. Light Amplitude of Stimulated Emission of Refraction d. Light Amplitude of Stimulated Effect of Radiation 4. What causes most fiber optic attenuation and absorption? a. exceeding the bending radius b. impurities in the coating c. impurities in the cladding d. temperature
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5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. To demonstrate the effect of angle of launch on range of a projectile. To demonstrate that the moment of inertia of a rod changes with the change of position of a pair of equal weights attached to the rod. To study variation of volume of a gas with its pressure at constant temperature using a doctors’ syringe. To demonstrate Bernoulli’s theorem with simple illustrations To demonstrate that heat capacities of equal masses of different materials are different
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CHAPTER 1 — BASIC RADAR PRINCIPLES AND GENERAL CHARACTERISTICS INTRODUCTION The word radar is an acronym derived from the phrase RAdio Detection And Ranging and applies to electronic equipment designed for detecting and tracking objects (targets) at considerable distances. The basic principle behind radar is simple - extremely short bursts of radio energy (traveling at the speed of light) are transmitted‚ reflected off a target and then returned as an echo. Radar makes use of a phenomenon
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Of course‚ we live in an imperfect world and not all surfaces are smooth. When light strikes a rough surface‚ incoming light rays reflect at all sorts of angles because the surface is uneven. This scattering occurs in many of the objects we encounter every day. The surface of paper is a good example. You can see just how rough it is if you peer at it under a microscope. When light hits paper‚ the waves are reflected in all directions. This is what makes paper so incredibly useful -- you can read
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lens further magnifies the image by 10 times. The total magnification is calculated by multiplying the objective and the eyepiece magnification together (3). When a ray of light passes from one medium to another‚ refraction occurs that’s the ray is bent at interface (3). The refraction index is a measure of the bending of a ray of light when passing from one medium into another (4). Lenses act like a collection of prisms‚ when a light is distant so that parallel rays of light strike the lens‚ a convex
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Sometimes people go to the the desert and they see things that are not actually there‚ such as a water hole‚ or an oasis. Centuries back‚ there have even been accounts of travelers seeing entire towers in the distance‚ as if they had been transferred miles away from where they actually were. Mysteriously‚ if anyone approached closer‚ the objects would disappear or even keep moving farther away into the distance. This phenomenon has completely boggled wanderers for a long time. Now‚ in this modern
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I AND II ASSESSMENT EVALUATION Final Exam 40% Midterm Exam 25% Quizzes 15% Assignments 20% COUSE CONTENTS Newton’s Gravitation law‚ Kepler laws‚ Electrostatics‚ Magnetisms‚ Amperes law‚ Magnetic flux density B‚ Reflection and Refraction‚ Interference and Diffraction‚ Natural and Artificial Radioactivity‚ Heat and Conductivity‚ Pressure and Density‚ Thermodynamic Principles‚ Electricity and Magnetism‚ Semi Conductors‚ Transistors‚ Satellite Communication‚ Introduction to Meteorology
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colors. So you would find it in very blue/green waters like reefs 3. What property of light allows the lens in animal eyes to work? Give the definition of the property and an animal example. c. Light REFRACTION allows lenses to reflect the light in the back of the eye. Refraction is the bending of light as it passes through something with a different speed of light. Cats 4. You are a geneticist working with a team of other scientists to engineer an animal optimized for hunting at night
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is a process at Muriwai that gradually wears away the rock particles of the earth’s surface‚ transporting them to another location. There are many types of processes that cause erosion at Muriwai such as wave erosion‚ wind erosion and wave refraction. Thousands of years ago when sea levels dropped over years at the Southern end of Muriwai‚ the sedimentary rock and sandstone was exposed to the air. Rock from volcanic activity mixed with the sedimentary rock; this is called Breccia –
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Fiber Optics History of Fiber Optics History Of Fiber Optics In 1870‚ John Tyndall‚ using a jet of water that flowed from one container to another and a beam of light‚ demonstrated that light used internal reflection to follow a specific path. • Alexander Graham Bell patented an optical telephone system‚ which he called the Photophone • He dreamed of sending signals through the air‚ but the atmosphere didn’t transmit light as reliably as wires carried electricity. • During the 1920s‚ John
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