Hair Strand using Single-Slit Diffraction Stephen Flores1‚ Ailene Gonzales2 Department of Physics‚ University of San Carlos‚ Nasipit‚ Talamban‚ Cebu City 6000 1step.upflores@yahoo.com 2avg08_1s2 @yahoo.com Abstract This paper presents the utilization of the single slit-diffraction phenomena in analyzing the physical characteristics of a hair strand. Hair samples with various macroscopic textures were used as barriers to produce a diffraction pattern where the distance between
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X-ray Powder Diffraction Analysis: Principles‚ Instrumentation and Applications M.S.Pandian Department of Earth Sciences‚ Pondicherry University‚ Puducherry-605014 Introduction X-ray powder diffraction analysis (XRD) is perhaps the most widely used X-ray based analytical techniques for characterizing materials. As the name suggests‚ the sample is usually in a powdery form‚ consisting of fine grains of crystalline material to be studied. The term ’powder’ really means that the crytalline domains
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Lab 5 The Diffraction Grating Chinua McDonald Objective: To measure the wavelength of light with a diffraction grating. Theory: The two types of diffraction gratings are the transmission and reflection gratings. They are made by ruling on a piece of glass or metal a number of evenly spaced lines with a fine diamond point. Diffraction phenomena can be analyzed in terms of Huygens’ principle‚ according to which every point on the wave front of a wave should be considered as a source
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Diffraction and interference describe effects unlike what geometrical optics would predict: the edges of shadows are not quite sharp; the beam passed by a slit is not a narrow rectangle. Diffraction patterns carry information about the spacing and location of the elements in the diffraction grating that produced them. Conversely‚ if we know the structure of the grating‚ we can deduce properties about the incident light‚ in particular its wavelength. This will be our task‚ in this first optics
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Mount Palomar [diameter SP42-5 of the objective is 5.08 m]‚ assuming that this distance is determined by diffraction effects. Assume a wavelength of 565 nm and the Earth-Moon distance is 3.84 x 108 m. (b) How far apart are the centres of diffraction pattern in the focal plane (f = 35.3m) of the lens? 3. Light of wavelength 440 nm passes through a double slit‚ yielding the diffraction pattern of intensity I versus P42-7 deflection angle θ shown in figure 42.27. Calculate (a) the slit width
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spectrophotometer is to measure the concentration of solute. The solute being measured must be colored and is determined based on the adsorption of light photons on a wavelength. The spectrophotometer uses a beam of light that strikes the diffraction grating that basically forms of prism of light. Then only a specific wavelength of light shines through the spectrophotometer and interacts with the solute. The light that continues past the solute hits the phototube. The spectrophotometer then digitally
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1 Unit – 4 Engineering Physics OPTICS Dr. V.P.N. Padmanaban M.Sc.‚ Ph.D.‚ Associate Professor 1. Interference Interference of light waves is a superposition phenomenon. This phenomenon was first described by Thomas Young in 1801. It provided strong evidence for the wave theory of light. In Young’s interference experiment‚ an incident monochromatic light is diffracted by a slit in the first screen‚ which then acts as a point source of light that emits semicircular wavefronts. It is
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Wave Nature of Light Objective: The purpose of this lab is to investigate interference‚ otherwise known as the diffraction of light. A beam of light acts a wave‚ and we are able to use equations so calculate the wavelength of the light used. The diffraction of a straight edge demonstrates that light waves bend around straight edges‚ allowing light to enter an area of shadow. When waves are superposed‚ they reinforce each other when crests are in phase and cancel out when they are not in phase
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Investigatory Projects in Physics | Repulsorlifts as a Method of Stable Magnetic Levitation | Repulsorlifts were used in the study to find out if they can be used to replace the wheels of a conventional car. It was hypothesized that it will be able to lift a car using magnetic repulsion forces. The different magnets were tested individually with the usual tests for magnetic strength‚ size‚ and temperature increase‚ which were done in the preliminary testing. The prototype road and car were
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fabrication of periodic surface nanorelief‚ representing one-dimensional diffraction gratings.” (Ionin‚ Kudryashov‚ Makarov‚ & Seleznev‚ 2012) It continues with theory of it. In the introduction there is a more elaborated theoretical framework of previous research and an explanation of why “However‚ this coloration principle lacks homogeneous color brightness‚ since the nanogratings efficiency will vary for different diffraction angles.” (Ionin‚ Kudryashov‚ Makarov‚ & Seleznev‚ 2012) And how “spatial
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