Color II

Problem: Lights in a Theater The person in charge of lighting in a certain theater has two lights available, a red light and a green light with spectra shown in the figure below: The beams from these lights both shine (superimposed) on the backdrop. Region I of the backdrop is painted in a certain English vermillion, region II is painted a certain emerald green, and region III is painted a certain cobalt blue. The reflectance of these paints are shown in the figure below: Sketch roughly the spectra of the light reflected from each region and indicate what color it looks like.