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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therefore they do not need a medium (substance) to propagate (move). 2. identify the electromagnetic wavebands filtered out by the atmosphere‚ especially UV‚ X- rays and gamma rays The electromagnetic spectrum is spit up by varying wavelengths‚ long wavelengths are radio waves‚ and short ones are gamma rays. This is shown in the diagram below. Fig. (4) The EMR (Electromagnetic Spectrum) Earth’s atmosphere filters out most of the electromagnetic waves except for visible light and radio waves
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c c. b b. d d. a ____ 4. In the diagram‚ the wavelength is shown by: a. c c. b b. d d. a ____ 5. If wavelength is kept constant‚ which increases as the speed of a wave increases? a. period c. amplitude b. frequency d. phase ____ 6. Which shows the correct angle of reflection given the incident ray shown? a. c. b. d. ____ 7. If the period of a certain wave (wavelength = 4.5 m) is 2 seconds‚ what is the speed of the wave? a.
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I turned the Bunsen burner to the desirable flame. b.) I then took the Barium sample wooden splint. c.) By placing the soaked part in the flame I observed the color of the flame. d.) By observing the flame with the spectroscope I obtained the wavelength of the cation. e.) Repeated the process with the remaining metal cat ions. (calcium‚ copper (ii)‚ lithium‚ sodium‚ strontium‚ and cobalt (ii)) f.) Followed by the unknown metals. DATA Part 1: White light 1.) The light source that has a continuous
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applied to a spherical wavefront. The spherical wavefront in Figure 1 shows that a source emits a wave and that if all points along the wavefront AA’ are sources of new wavelengths‚ after a short period of time‚ the new overlapping wavelets would then form a new surface BB’‚ which can infer as the envelope of all the wavelengths. As the waves spread‚ a segment appears less curved. As stated in Huygens’ Principle “The new wavefront is the tangential surface to all of these secondary wavelets.” And
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Discussion Questions 1. 2. What is a spectroscope and what is it used for? A spectroscope is a scientific instrument that is used to measure the intensity of the light at different wavelengths by calculating the amount of light energy that is being absorbed by the electrons at different wavelengths. 3. 4. 6. How might the difference in the brightness of spectral lines be explained? In other words‚ why are some lines in a spectra easier to see and appear brighter? Some lines in a spectra are easier
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College of Computer & Information Science Northeastern University Wireless Networks Lecture 2 Antennas and Propagation The notes in this document are based almost entirely on Chapter 5 of the textbook [Sta05]. Rappaport’s text is also a good reference for wireless signal propagation [Rap95]. 1 Antennas An antenna is an electrical conductor or a system of conductors that radiates/collects (transmits or receives) electromagnetic energy into/from space. An idealized isotropic antenna
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EXPERIMENT NO. 1 AIM :- To study wave guide components. APPARATUS REQUIRED :- Flanges‚ Twisted wave guide‚ wave guide tees‚ Directional Coupler‚ Attenuator‚ Isolators‚ Circulators‚ Matched terminator‚ Slide screw tuner‚ Slotted Section‚ Tunable probe‚ Horn antennas‚ Movable Short‚ Detector mount. THEORY:- A pipe with any sort of cross- section that could be used as a wave guide or system of conductors for carrying electromagnetic wave‚ is called a wave guide in which the waves are truly guided.
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A string attached to a turning fork is set vibrating at the same frequency as the tuning fork. The length and tension in the string are adjusted until standing waves are observed on the string. By knowing the tension in the string and the wavelength of the standing waves‚ the frequency of oscillation of the string and thus‚ the tuning fork is found. This value is then compared to a strobelight determination of the frequency. THEORY If transverse waves of constant frequency
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or more frequencies. Notably‚ resonance may occur between the surface and the tuning fork in case sound is reflected from the surface. In essence‚ the sound is used to detect resonance. In addition‚ the difference between two resonances is a half-wavelength and can be expressed as follows: h2 – h1 = ƛ/2… Equation [1] Equation [1] relates the difference between the two
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