【實用教育app】SpectrumLITE|最夯免費app-綠色工廠好玩App

This app is designed for the display of the spectrum of light that can be emitted by the iPod or iPhone screen. To use it, select a color from the diagram. A line of color will appear. The width of the line can be varied by tapping the screen and selecting pixel width using the slider. View the spectral line using either a prism or a diffraction grating.