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 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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Prism and 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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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 cm Plexiglas Tank Beaker stand Test tube clench Laser pen Meter ruler Angle ruler 1500 ml Water 1500 ml Vegetable oil 1500 ml Vinegar Tape or chalk Overview This lab introduces
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Refractive Index of Perspex Aim: the aim of this experiment is to find the refractive index of Perspex. Tools: Pencil Graph Paper Perspex glass Pin Procedures: 1. 2. 3. 4. 5. 6. Ruler Styrofoam Paper Place an A4 paper over the Styrofoam‚ then Place the Perspex glass on the middle of the A4 paper and mark its place. Place a pin about away from the side of the Perspex glass‚ Draw six points about 10 degrees away from each other as labeled from 1-6 on
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PETROLEUM ENGINEERING DETERMINATION OF REFRACTIVE INDEX OF CRUDE OIL TPE 527 PETROLEUM ENGINEERING LAB. 111 NUESIRI ESEOGHENE ANITA 151419 11/21/2014 LABORATORY REPORT SUBMITTED TO DR.S.O ISEHUNWA Department of Petroleum Engineering‚ Faculty of Technology‚ University of Ibadan‚ Ibadan. 20th November‚ 2014 The head of department‚ Department Of Petroleum Engineering‚ University of Ibadan Ibadan Dear Sir‚ LETTER OF SUBMISSION OF LABORATORY REPORT I‚ NUESIRI ESEOGHENE‚ a 500 level student
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affect the Refractive Index? The aim of this experiment is to investigate the relationship between the refractive index and the wavelength. We will be testing 5 different wavelengths: 630nm (red)‚ 570nm (yellow)‚ 532nm (green)‚ 445nm (blue) and 405nm (violet). Figure 1 Figure 1 What is the refractive index? The refractive index is the measurement of how hard it is for light to pass through a certain substance‚ thus affecting the speed of light. By knowing the refractive index of a substance
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Refractive Index: Refractive Index formula is use to find the change of speed of light as it travels from air into glass. It measure how much light slows down when it enters denser medium such as glass. The formulae is written as: To find out the refractive index‚ substitute these into the equation; The speed of light travels in air is 3 x 10^8-1 The speed of light travels in glass is 2 x 10^8 ms^-1 Refractive Index (Glass): 3 x 10^8 / 2 x 10^8 = 1.5 When light enters glass‚ its reflective index
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Mitotic Index Lab Report Results: My results of the Mitotic Index Lab Report Interphase Prophase Metaphase Anaphase Telophase Total # of cells 39 9 8 22 7 85 % of cells 46% 11% 9% 26% 8% 100% Average class results of the Mitotic Index Lab Report Interphase Prophase Metaphase Anaphase Telophase Total # of cells 33 11 6 7 4 61 % of cells 54% 18% 10% 11% 7% 100% Summary of results: While conducting the Mitotic Index Lab it was difficult to identify what stage the cells were in because the magnification
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AIM : To find refractive index of any liquid (water) using a concave mirror. APPARATUS: A concave spherical mirror‚ water‚ an optical needle‚ a clamp stand‚ one meter scale‚ plumb line‚ etc. THEORY: If the tip of object needle 0 be at the centre of curvature C‚ tip of image will exactly coincide with it. (Principle axis is verticle to the plane). When water is filled in concave mirror‚ object needle is again replaced to move to C’ to remove parallax between tips of object needle and its image. A
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