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Unformatted text preview: Single and Double Slits Objective : To observe the behavior of the diffraction pattern from a single slit width, measure the distance between bright spots to calculate the distance between the double slit and do diffraction grating. Equipment : Single and double slits White light source Meter stick Diffraction Grating Laser Optical bench Single Slit Procedure : Obtain a stand where your laser and the optical bench where the slits can me placed. Once fixing the laser in place so that it will go through the optical bench, place a single slit on the optical bench and make the laser go through one of the slits. Record the chosen single slit with a width of a and the distance from screen to slit L. Observation : Wavelength: = . 632 8nm Length between the screen and slit: L = 235.5cm Slit width: a = 0.08 mm Figure1 : ( ) I Imax Double slit : Procedure : Keep the laser and the optical bench to their respectful place and remove the single slit only and replace it with a double slit. Make sure the laser is point through a slit. Measure the distance between the bright spot which will help you find the distance between the slits....
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- Spring '11