(emerging dot line). Extend the refracted ray. 11. Measure the angles of incidence and the angles of refraction. 12. Use your practical results to verify Snell’s Law. Results: *Refractive index for Perspex is 1.5. Experiment 1 n1 sinθ1 = n2 sinθ2 1 sin30° = n2 sin19.5° ∴n2 =1.497 (Refractive Index) Experiment 1 check 1.497 sin 19.5 = 1.5 sin19.5° 0.4997 ≈ 0.5 Experiment 2 n1 sinθ1 = n2 sinθ2 1 sin60° = n2 sin35°
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experiment we will be proving that: sinⅈsinr=n2n1 or n1sinⅈ=n2sinr where n1 and i are the index of refraction and angle with the normal to the surface for the incident ray‚ respectively‚ and n2 and r are for the refracted ray. Aim: The aim of this investigation is to prove determine the relative refractive index of perspects. Hypothesis: Sin i / Sin r will produce a constant ratio – the refractive index for perspects Variables: Independent Variable: Sine of the angle of incidence (Sin
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Baldeo Persaud NT1310 Unit 7 Exercise 1: Fiber Optics- Definitions 1. Crosstalk – The coupling or transfer of unwanted signals from one pair within a cable to another pair. Crosstalk can be measured at the same (near) end or far end with respect to the signal source. Crosstalk is considered noise or interference and is expressed in decibels. 2. Waveguides – A structure that guides electromagnetic waves along their length. The core fiber in an optical-fiber cable is an optical waveguide. 3. FTTH
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of tests in order to identify the species in question. The tests being: determining the boiling point using two methods (distillation and capillary tube)‚ determining the refractive index‚ and obtaining UV/VIS and FT-IR absorption spectra. After the results from the various tests are obtained‚ the boiling point and refractive index should be compared to literature data while the absorption spectra should be analyzed. Finally‚ this should allow the group to accurately identify the nature of the chemical
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ASSIGNMENT COVER SHEET STUDENT DETAILS ID | 24531545 | Family name | Zhang | | | | | Phone no. | | Given names | YuCheng | Monash email address | | yzha420@student.monash.edu | INSTRUCTIONS FOR SUBMISSION OF HARD COPY (PRINT) ASSIGNMENTS 1. Read and sign your cover sheet 2. Staple this sheet to the front of your assignment 3. Your assignment should be placed in the appropriate assignment box on your campus‚ unless other arrangements has been approved by the
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to transmit images for television or facsimile systems. • In 1954s‚ Abraham Van Heel made the crucial innovation of cladding fiber-optic cables • Abraham Van Heel covered a bare fiber or glass or plastic with a transparent cladding of lower refractive index. • Corning Glass researchers Robert Maurer‚ Donald Keck‚ and Peter Schultz invented fiber-optic wire or "optical waveguide fibers • In April 1977‚ General Telephone and Electronics tested and deployed the world’s first live telephone traffic
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source. The optical carrier can be modulated internally or externally using an electro-optic modulator (or) acousto-optic modulator. Nowadays electro-optic modulators are widely used as external modulators which modulate the light by changing its refractive index through the given input electrical signal. In the digital optical fiber communication system‚ the input electrical signal is in the form of coded digital pulses from the encoder and these electric pulses modulate the intensity of the light from
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CHAPTER – 10 LIGHT-REFLECTION & REFRACTION Light is a form of energy‚ which enable us to see the object. In this chapter we will study the phenomena of reflection and refraction using the property of light i.e. straight line propagation (Light wave travel from one point to another‚ along a straight line). Reflection of Light When the light is allowed to fall on highly polished surface‚ such as mirror‚ most of the light gets reflected. normal Laws of Reflection 1. 2. The angle
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Filter “A.A. Cruz The University of Alabama in Huntsville Physics Department‚ 137 Madison Hall Huntsville‚ Al 35899‚ US April 2009.” Abstract In this study‚ a novel design of a Fabry-Perot band pass filter using as low and high index coating materials silicon dioxide (SiO2) and titanium dioxide (TiO2) is presented. Two high reflectance dielectric materials separated by a half wavelength “cavity” which is made up of SiO2 that allows light surrounding the central wavelength (550
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AIM: i)To investigate the dependence‚ of the angle of deviation on the angle of incidence‚ using a hollow prism filled one by one with different transparent fluids. APPARATUS REQUIRED: Drawing board White sheets of paper Hollow prism Different liquids(water‚ kerosene‚ oil‚ spirit etc.) Drawing pins Pencil Half meter scale Thumb pins Graph papers A protractor INTRODUCTION: In optics‚ a prism is a transparent optical element with flat‚ polished surfaces that refract light. The
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