9 Turn on the laser pointer and record your observations on how the projected

9 turn on the laser pointer and record your

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9. Turn on the laser pointer, and record your observations on how the projected image has changed on the Data Sheet. 10. Turn off the laser pointer and remove it. 11. Replace the laser pointer with a flashlight. Turn on the flashlight, and record your observations on the Data Sheet. Repeat with the second grating. Draw the resulting spectra on the Data Sheet using colored pencils. Figure 7: Setup for diffraction experiment. Ruler Laser pointer Book Screen Kit box Diffraction maxima (red spots) Diffraction grating ©2018, eScience Labs
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Data Sheet Experiment 1 Data Sheet PART 1 1. Observations and drawing for the spectrum produced on the CD: 2. Observations and drawing for the spectrum produced by the laser pointer on the CD: Table 2: Distance Measurements Grating Measurement of X Measurement of L 1000 lines/mm PART 2 3. Observations of the laser pointer shone through the 1000 lines/mm diffraction grating: 4. Observations and drawings of the flashlight shone through the 1000 lines/mm diffraction grating: CALCULATIONS Calculate the wavelength of the laser for d = 1/1000 mm. Use the modified “grating equation” given below. Remember to keep all calculations in millimeters (mm) until the end, and then convert your answer to nanometers (1 nm = 10-9 m). Show all your work below: ©2018, eScience Labs
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