The meterstick spectroscope consists of two metersticks, a diffraction grating, a slit, and a light source. You can learn more about how the spectroscope works by using the Atomic Spectra Applet , described on the Getting Started page. Move your cursor over the image for information about the instrument.
Help is here .
Aligning the Spectroscope First, line the spectroscope up with the light source so that bright light passes through the opening in the meterstick. Adjust slits by making the razor blades parallel and close together. Slits that are narrow will make the lines sharper. Slits that are more open will give brighter lines. Using the Spectroscope To observe a spectrum, look through the grating toward meterstick a .