Objective The objective of this experiment is to understand reflection and refraction and how they vary with different matters. At the end of this experiment‚ you will be able to: Determine index of refraction of various solutions Recognize the passage of refracted beams though different medium Understand the concept of Snell’s Law Understand how the speed of electromagnetic waves in different matters are related Determine the critical angle for total internal reflection Materials 550
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The refractive index Aim: The aim of this experiment is to find the refractive index of a glass prism. In this experiment‚ the independent variable is the angle of incidence‚ and the dependent variable is the angle of refraction. Theory: Snell’s law relates the angle of incidence and refraction to the ratio of the velocity of the wave in the different media. The formula for Snell’s law is the following: Sin isinr = v1v2 = n Where i is the angle of incidence‚ r is the angle of refraction
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step index fiber It is an optical fiber which has a core of constant refractive index.there are two types of step index fibers:single mode si and multi mode si fiber single mode step index fiber has only one mode of EM propagation (HE11) an has a core diameter of about 8-12 Um. and multi mode si has many mode of propagation and has a core of diameter of about 50 Um which allow many no of modes through it. single mode step index has an adv of lower inter modal dispersion as there is only
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London College of Accoundancy Pre-Sessional English Course EXTENDED WRITING The Macbook air and its overall impact on Macbook sales‚growth‚profitability‚ and sustainability. Roshni Iyyani Sureshbabu SID: 305576/406226 Date of Submission: 29 July 2013 Word Length : 1120 Submitted To: Ms Alice Sheridan Indroduction The Macbook Air family is a line of ultraportable macintosh notebook computers created by Apple Inc(which is founded by Steve jobs‚Steve Wozniak and Ronald
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to determine the angle of minimum deviation. To find out the refractive index of various liquids using a Hollow Prism. INTRODUCTION: This project is of Investigatory Type. In this project‚ a hollow prism has been used to calculate the refractive index of various liquids. The hollow prism is filled with liquid and then the experiment
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OVERVIEW INDEX NUMBERS compare figures which show changes in a given variable. The most common variables used in index numbers are price and quantity. By getting the difference of the index numbers‚ we are able to determine the relative or percent change in the price or quantity of a commodity between two periods of time or two localities. Among the more commonly used index numbers are the consumer price index‚ retail price index‚ wholesale price index‚ and the cost-of-living index. DEFINITION
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INDEX NUMBER Introduction Sebuah index menunjukkan perubahan relatif yang terjadi pada sebuah nilai dari satu periode ke periode yang lain. Kegunaan index‚ misalnya pada Consumer Price Index‚ adalah mengukur perubahan harga pada suatu kelompok besar dari barang-barang yang dibeli konsumen. Simple Index Numbers Angka index adalah suatu angka yang menunjukkan perubahan relatif pada harga‚ jumlah‚ atau nilai dibandingkan dengan suatu base period. Jika angka index yang digunakan untuk mengukur
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wavelength of light. Because the velocity of light in air is always greater than that through a liquid‚ the refractive index is a number greater than 1; for example‚ hexane n20D 1.3751. The superscript 20 indicates that the measurement was made at 20 oC‚ and the subscript D refers to the yellow D-line of a sodium vapor lamp‚ light with a wavelength of 589 nm. The measurement is made with a refractometer using a few drops of liquid. Compensation is made within the instrument for the fact that white
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The Inaba text describes the phenomenon of "therapeutic index." Addiction to barbiturates can be critical in terms of lethality as measured by the therapeutic index. Describe how this phenomenon might lead to an accidental overdose. Why is this factor more critical with barbiturates than with other classes of depressant drugs? Barbiturates are nonselective central nervous system (CNS) depressants‚ capable of producing all degrees of depression from mild sedation and hypnosis to general anesthesia
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The index of dissimilarity The index of dissimilarity measures the evenness of two racial groups distributed across an area in relation to a larger area. The scale ranges from zero‚ complete integration‚ to one‚ complete segregation. The index can be used with the analysis of racial segregation in trends dealing with socioeconomic class‚ immigration‚ nativity‚ and residence. Generally‚ without immigration‚ the dissimilarity index between two races decreases as time goes on. This trend is most noticeable
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