Polarization of light lab report. Optics and Thermodynamics (Experiment A) Lab Report 2022-12-26

Polarization of light lab report Rating: 4,1/10 1260 reviews

Polarization of light refers to the process by which electromagnetic waves oscillate in a single plane. This phenomenon can be observed in a variety of different materials, including crystals, liquids, and gases. In this lab report, we will discuss the results of an experiment designed to investigate the polarization of light using a polarizer and an analyzer.

To begin the experiment, we first set up a light source, such as a lamp or laser, and positioned it so that it shone through a polarizing filter, or polarizer. This polarizer is a transparent material that only allows light waves oscillating in a specific plane to pass through it. We then placed an analyzer, which is another polarizer, in front of the light source. The analyzer can be rotated to different angles, allowing us to investigate how the polarization of the light changes as the angle between the polarizer and the analyzer changes.

As we rotated the analyzer, we observed that the intensity of the light passing through the analyzer varied. When the polarizer and analyzer were aligned, the intensity of the light was at its maximum. As we rotated the analyzer away from this alignment, the intensity of the light decreased. This is because the analyzer is only able to pass light waves oscillating in the same plane as the polarizer, and as the angle between the two increases, fewer and fewer light waves are able to pass through the analyzer.

We also observed that when the angle between the polarizer and the analyzer was 90 degrees, the intensity of the light was at its minimum. This is because at this angle, the polarizer and analyzer are perpendicular to one another, meaning that no light waves are able to pass through the analyzer.

In conclusion, our experiment demonstrated that the polarization of light can be controlled and manipulated using polarizers. By aligning or misaligning the polarizer and the analyzer, we were able to vary the intensity of the light passing through the system. This experiment provides a useful illustration of the principles of polarization and has a wide range of practical applications, including in sunglasses, LCD screens, and scientific instruments.

Herby S. The Polarization Of Light Lab Report

polarization of light lab report

Fresnel worked on numerous formulas to calculate the way light changed directions, while passing through the prisms. For this experiment, the material must be dielectric to facilitate maximum polarisation. . This is achieved by using a vernier spectrometer and analysing a sodium light source as it is transmitted through the dielectric boundary and is refracted, reflected and polarised via unique processes. You must also use two additional scholarly references from peer-reviewed scientific journals. When positioned, the telescope is then locked into place.

Next

Lab Report_student_Polarization of blog.sigma-systems.com

polarization of light lab report

If a second filter is set-up in front of the first filter, the angle between the axis of one filter and the axis of the other will determine the intensity of the light passing through the second filter; if both axes are perpendicular to one another, no light will pass through; if the axes are parallel to one another, all of the polarized light will pass. The Fresnel lens is not just one lens but a number of prisms. In un-polarized light, electric field of light continuously changes its electric field. But we always can resolve E-field into its horizontal and vertical components. The light that exits the filter is said to be polarized , because the electric field vector points in a direction 1 P a g e parallel to the filter axis. It still could have, on the other hand, resulted in a minor discrepancy in the results. Next noticing how the best glare reduction is achieved from a filter with its transmission axis in a vertical position the light reflected from a horizontal surface is horizontally polarized.

Next

Polarized light lab report, Sample of Essays

polarization of light lab report

When this light is incident upon a material with a dielectric boundary, the wave will be partly reflected and refracted. The plane, in which one component lies say electric component, is known as the plane of oscillation for that wave. Therefore, when a ray of light nears 90 and 270 degrees illumination is at a minimum. Lab Objective This experiment will be conducted to investigate the absorption spectra of Complexes of Ni2+. Watch this brief video demo of Prioritization of Care. .

Next

Lab 7 Polarization of blog.sigma-systems.com

polarization of light lab report

Procedure On the dynamics track, a polarizer was placed directly in front of a light source and an analyzer was placed further down before a light sensor. In this case polarizer 1 affected intensity on light by Malus law and also destroyed its polarization and give x-component and y-component of light which after passing through polarizer 2 again through Malus law and equation given above give intensity as shown. Microsoft PowerPoint Presentation4 to 6 slides. Now compare your data to the model you developed in Preliminary Question 3. My class conducted experiments on polarization and things such as how to label, find, and see what kind of things it would do.


Next

Optics and Thermodynamics (Experiment A) Lab Report

polarization of light lab report

Then with two filters were put together and aligned so that light passed through them, looking through them at a 1 page, 252 words Shades Dear Mom, This past week i endeavored on the delightful effect of polarized light. The analyser was rotated from β to the point at which the light is no longer visible and the location on the analyser where this occurs was recorded. Adhere to grammar, spelling and punctuation criteria. Henceforth, the location of the magnetic and electric fields in the transverse wave can be identified and cancelled out. PART II- In part two of the experiment one polarizing filter was placed on top of the other so that light was transmitted. Also, as mentioned in the experimental procedure, the polariser is not one hundred percent efficient. Then holding each of the two linear polarizing filters in front of the eyes in a way that best reduces the glare from the window.

Next

Phys 2109 Lab 8 Report

polarization of light lab report

Such light is called randomly polarized or un-polarized. Try to develop your own. Phys 1402 — L Names: Josephine Do, Hunter Virkus, Fernando Hernandez, Paola Lujan, Katelynn Gonzalez Procedure This lab is an exercise in creating your own complete lab report. Keeping the table positioned at the point where this occurs, the telescope crosshairs can be centred on the light and a reading from the vernier scale is taken. In conclusion, it was proven that polarization reduces unwanted reflected glare off surfaces.

Next

Lab Report_student_Polarization of blog.sigma-systems.com

polarization of light lab report

Also, to reduce the range over which the light is completely plane polarised, as mentioned in the discussion, the telescope could have a clearer resolution. He later found out that when using the prisms and angling them to gather light, it intensified and it would project outward. In case of elliptically polarized light, intensity does not change. PART II - In part two of the experiment one polarizing filter was placed on top of the other so that light was transmitted. OBSERVATIONS: From my observation in part one by placing the two filters together one in front of the other and slowly rotating one of the filters I notice that light between them became brighter as one filter was being rotated then the light became a dark blue shade. Figure 3: Left Image of the apparatus with polariser and analyser attached. Data Table Arrangement Light Intensity No polarizer One polarizer Two polarizers at 0º Two polarizers at 45º Two polarizers at 90º Additional Questions 4.

Next

Physics Lab blog.sigma-systems.com

polarization of light lab report

If you buy sunglasses how can you be sure they are truly polarized? List feelings experienced as the charge nurse related to prioritization of care digital activity. For this experiment, a glass prism is used as it behaves as a dielectric material upon which plane polarised light can be refracted and reflected. The rate of photosynthesis was measured by the spinach disk method in which we replaced the air from. It would therefore be ideal to use a freshly polished prism and ensure that the surrounding air is clear, because the air is the first medium which the light travels through. Then slowly one of the filters was rotated through 360o while keeping the other one still.


Next

polarized light lab report

polarization of light lab report

Data Table Arrangement Light Intensity No polarizer One polarizer Two polarizers at 0º Two polarizers at 45º Two polarizers at 90º Additional Questions 4. The angles of refraction and reflection can be quantified to a high degree of precision using a vernier spectrometer. Two Polarizers For this part, please use online simulation. Problems were encountered when conducting part two of the experiment, it was difficult to position the polarizing filter at the precise angles. Compare the value of parameter d to zero. Tubes 4-6, which contained no enriched chloroplast, were put into a separate tube rack, which was situated in a closed drawer so that no light made contact with those samples. This value γ should in principle be approximately equal to β ± 90°.

Next