Index.of 3gp How To Measure The Refractive Index Of Light Without Using A Spectrometer?

How to measure the refractive index of light without using a spectrometer? - index.of 3gp

I was doing a physics project to see with the help of a spectrometer, the impact on the index of refraction of light, changing the light source or the concentration of the solution to the Prism / type of solution on the prism. Other possibilities that I do this research? except through the prism spectrometer ...