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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The Beer-Lambert LawWhat the Law looks likeYou will find that various different symbols are given for some of the terms in the equation - particularly for the concentration and the solution length. I’m going to use the obvious form where the concentration of the solution is "c" and the length is "l". | | Note: That’s obviously "l" for length. The font I’m using won’t distinguish between "l" for length and a capital letter "I" (for Intensity). That problem disappears in the equation below - where
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Frequencies A sound wave is created as a result of a vibrating object. The object that is vibrating‚ is the source of the disturbance that moves throughout the medium. The object creating the disturbance could be the vocal cords of a person‚ the vibrating strings and soundboard on a string instrument‚ or the vibrating diaphragm of a radio speaker. If an object has the ability to vibrate‚ then it will produce sound. Almost every
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Experiment 2: Absorbance and Spectrophotometry ABSTRACT: This was an investigation into the effects of different wavelengths of light on methylene blue and carmine red on the absorbance value on a spectrophotometer. A spectrophotometer is used to measure light intensity by emitting a single light source through a cuvette of coloured solution. The particles in the solution‚ which are coloured‚ absorb the light depending on how concentrated it is and this produces an electronic reading from
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Final Exam Review Questions Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. In the diagram‚ the amplitude of the wave is shown by: a. c c. b b. d d. a ____ 2. In the diagram‚ the crest of the wave is shown by: a. c c. b b. d d. a ____ 3. In the diagram‚ the trough of the wave is shown by: a. c c. b b. d d. a ____ 4. In the diagram‚ the wavelength is shown by: a. c c. b b. d d.
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PHYSICS DEPARTMENT ASSIGNMENT 2 - MIT–MANIPAL PHY 102 February 2014 1. Monochromatic light of wavelength 441 nm falls on a narrow slit of width 25.2 μm. (a) Find the angular positions of 1ST and 2ND minima and their linear position on a screen E42-3 2.16 m away. (b) Calculate the ratio of the intensity on the screen at a point 2.16 cm to the E42-11 intensity at the central maximum. 2. (a) Find the angular and the linear separation of two points on the Moon’s surface that can
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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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Laboratory Exercise #2 Pre Lab This lab will teach me how to use a spectrophotometer. The use of the 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
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Atomic Spectra Lab Purpose: The purpose of this lab was to identify the wave length and spectra of the two elements‚ mercury and hydrogen. The wavelengths of the two elements represent the characteristic energies of moving electrons. The spectra of the two elements are what side of the energy spectrum their wavelengths are on. Materials: • Hydrogen lamp • Mercury lamp • 2 diffraction devices • Flashlight • Paper • Pencil • Calculator Procedure: 1. Place
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Particle in a Box Lab March 25‚ 2014 Kassandra Brady‚ Samantha Imler‚ & Michael Montone CHEM 353 Abstract: Introduction: Method I: Absorption Spectra of Conjugated Dyes This method analyzes a series of dyes with alternating double bonds. It is assumed that the π electrons are free to move and ignoring the electro static repulsion among the π electrons themselves. The theoretical model applied in this experiment is the particle in the box. The model states that a single particle moves free
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