Reflection, Refraction, and polarization prelab

Reflection, - uncertainty 3 How will you know when the angle of incidence is at Brewster’s angle Brewster’s angle is the one particular angle

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1. Which one quantity is being measured by several different methods in this experiment? The index of refraction will be measured by several different methods in this experiment. 2. How will you determine which method is most precise and which is most accurate? By comparing the results of each of the methods to the predicted values, we can determine the most accurate method. The method that provides results closest to the calculated value is the most accurate. Precision is the closeness that each measurement agrees with each other. On the other hand, we can determine which method is most precise by comparing the uncertainties and choosing the one that has the lowest
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Unformatted text preview: uncertainty. 3. How will you know when the angle of incidence is at Brewster’s angle? Brewster’s angle is the one particular angle of incidence where the reflected beam is completely polarized. At this point, the refracted and reflected beams will be perpendicular. 4. Why is the laser beam directed through a cylindrical lens? The laser used is not wide enough for the purposes of the experiment. In order to increase the size of the beam, the cylindrical dispersion lens must be used to disperse the light on a plane perpendicular to the axis of the cylindrical lens. 5. What is another name for the Law of Refraction? The Law of Refraction is also referred to as Snell’s Law....
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This note was uploaded on 11/27/2011 for the course PHYS 105 taught by Professor Walker during the Fall '08 term at UNC.

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