This spectrometer is useful for looking at atomic and molecular spectra. A very nice experiment would be to examine the spectrum of a propane or butane flame. The blue color of the flame is primarily due to emission from electronically excited C2. The major structure in the spectrum is due to the quantization of vibration in the excited and ground electronic states. c.f. http://en.wikipedia.org/wiki/Swan_band
Thank you for answer.
There's many application for it in wave optics. More, I'm asking for experiment in geometrical optics field for freshmen!
measuring refractive indices of materials (Snell's Law)