PIRA: 6F10.20


 Lab Equipment  Directions
  1.  3 colored filters attached to folder
  2. overhead projector
  3. 4″ x 4″ holographic grating in frame with stoppers for support
  4. laser pointer
  1.  Place the folder onto the overhead.
  2. Holding the star grating at an angle to the overhead lamp, look at the spectra of each of the filters. Using the laser pointer, point ou the area of the missing blue and green bands corresponding to the red filter, and so one with the other two filters.