Adjustable Spectrometer with 25mm Prism

This spectrometer is an optical instrument used to determine the wavelength of light and the index of refraction of solids and liquids. It includes an adjustable collimator tube, a telescope, a prism holder, and a 25 x 25mm glass prism, all mounted on a sturdy metal base. The instrument measures approximately 10 inches tall and 15 inches wide at its widest setting. Both the collimator tube and telescope are approximately 6 inches long, and the prism holder base has a diameter of 3.75 inches.