lab_report-Julian-Leon (11) - Lab 10 Lasers A Study Of...

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Lab 10 Lasers: A Study Of Light And Intensity Date Performed: 07/12/2016 Julian Leon Date Submitted: 07/19/2016 1 / 10
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Lab 10 - Lasers: A Study of Light and Intensity: Lab 10 Lasers: A Study Of Light And Intensity Leon, Julian Purpose The main goal of this experiment was to determine the wavelengths, diameter and intensity of light and different laser colors. This was done so by conducting four experiments. The first two parts involved using a spectroscope to determine the wavelength of the laser. The first part required calibrating the spectroscope by recording the values observed when looking at a helium lamp through the spectroscope. The second part involved shining the laser into a wall and determining the wavelength by observing the light seen in the wall emitted by the laser. This was done for the green, purple and red lasers. This measured the difference in wavelength among the different color lasers. The wavelength determined by the spectroscope can then be used to calculate frequency or intensity as well. The third part determined the change in diameter and intensity of a laser when measured in 5 different distances. The purpose of this part of the lab is to prove that the intensity of the laser gets weaker the further it is from an object. It also proves that although the intensity gets weaker with distance, the diameter of the light grows with distance. The intensity is recorded by shining the laser into a light meter in 5 distances and the diameter is recorded by using a vernier caliper. The fourth part of the experiment replicated the third part to a smaller scale since it set to record the difference of light intensity/diameter using a flash light instead of a laser. This was done so by hooking up the flashlight to a ring stand and recording the light intensity using a light meter and with using a vernier caliper in 5 different distances. The same was done with a
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