modern_physics.gif (14139 bytes)

ABSORPTION SPECTRA






EQUIPMENT
    redball.gif (326 bytes) Single Slide Projector
    redball.gif (326 bytes) Absorption Spectra Kit
    redball.gif (326 bytes) 2 X 2 Plastic Slides



NARRATIVE
            Hold one of the 2 X 2 plastic slides so that the hollow cell is upright and put some dye solution in the cell. Then put the slide in the single slide projector and project an image of the two slits on a wall. When a transmission diffraction grating is inserted into the beam, white light and an absorption spectra will appear one above the other.