Introduction: To do the lab exercises for this lesson‚ you need to know a little bit about light. White light consists of all the colors of the rainbow mixed together. Diffraction refers to various phenomena which occur when a wave encounters an obstacle. In classical physics‚ the diffraction phenomenon is described as the apparent bending of waves around small obstacles and the spreading out of waves past small openings. Isaac Newton thought that light must be a particle because particles of light
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Visual Perception Pictorial depth cues are what we use to create depth and distance on a 2D canvas or paper. Linear perspective is used when two parallel lines converge together and are perceived to come to a point into the distance. We perceive this in straight roads‚ railway tracks or hallways. This image displays linear perspective on the left side on the box as it is perceived to come together despite the fact that the lines are parallel. Interposition is used when an object sits in front
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Aherne-Williams Fibre-Optic Telecommunications Systems: Fibre-optic telecommunications is simply a method of transmitting information from one place to another extremely fast. This is done by shooting pulses of light through an optical fibre. Creating the optical signal involving the use of a transmitter‚ relaying the signal along the fiber‚ ensuring that the signal does not become too distorted or weak‚ receiving the optical signal‚ and converting it into an electrical signal. An optic-fibre is a small
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Application of Fluorescence Spectroscopy in Chemical Oceanography: Tracing Colored Dissolved Organic Matter (CDOM) Erika Mae A. Espejo 3rd year‚ BS Chemistry‚ University of the Philippines‚ Diliman Abstract Dissolved organic matter (DOM)‚ the fraction passing through a 0.45 µm membrane filter‚ is considered poorly understood mixture of organic polymers because of its complexity. Although it largely influences a lot of biogeochemical processes in aquatic environments‚ its characterization is not
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Have you ever thought that perhaps‚ the only colour in real life is white? White light is indeed the bearer of all colours. The colours we see are reflections bouncing off an object or are the light source itself. The light sources change and the colours with them. Colour is not a stable affair. Colour is light alone‚ but our experience is so direct that we trust our eye and believe that a colour is inherent to an object. Imagine living in a world where everything is white in colour! However‚
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Making things look bigger When you use an optical instrument‚ whether it be something very simple like a magnifying glass‚ or more complicated like a telescope or microscope‚ you’re usually trying to make things look bigger so you can more easily see fine details. One thing to remember about this is that if you want to make things look bigger‚ you’re always going to use converging mirrors or lenses. Diverging mirrors or lenses always give smaller images. When using a converging lens‚ it’s helpful
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Introduction Light exhibits both the properties of a wave and a particle. Its wave-like properties are best shown in its propagation while the particle-like properties in the emission and absorption of light.[1] As light behaves like a wave‚ superposition is observed between interacting waves. Superposition of waves is the addition of waves that travel across the same medium. The resulting wave from this addition has amplitude at a particular point that is the algebraic sum of the amplitudes of
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Kevin Chapman ARTH 2720-001 Term Paper December 5‚ 2012 Manet and The Bar Edouard Manet’s painting A Bar at the Folies-Bergere‚ was completed in 1882 and is considered his last great painting. He displayed it at the Paris Salon just one year before his passing. This painting as vexed art historians throughout the years for its complex visual subject matter and leaves Manets true interpretation of his painting in the air for discussion. Although there are many interpretations‚ A Bar at the Folies-Bergere
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Mirror and Magnification Equations The mirror equation expresses the quantitative relationship between the object distance (do)‚ the image distance (di)‚ and the focal length (f). The equation is stated as follows: [pic] The magnification equation relates the ratio of the image distance and object distance to the ratio of the image height (hi) and object height (ho). The magnification equation is stated as follows: [pic] These two equations can be combined to yield information about the
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Crosstalk- unwanted signals in a communication channel (as in a telephone‚ radio‚ or computer) caused by transference of energy from another circuit (as by leakage or coupling) Waveguides- a device (as a duct‚ coaxial cable‚ or glass fiber) designed to confine and direct the propagation of electromagnetic waves FTTH- the installation and use of optical fiber from a central point directly to individual buildings such as residences‚ apartment buildings and businesses to provide unprecedented high-speed
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