As we know, each color of the visible spectrum has a different wavelength and, therefore, is bent to a different degree as it passes through the prism. On the white screen, you should see a rainbow. Position the white screen to receive the light as it exits the prism. On a flat surface, set up set up the prism and direct the white light through it. ![]() With this experiment, Newton discovered that white light is a combination of all colors rather than a single color in itself.įirst, you’ll need a prism, a source of white light, and a white screen. A great place to start is Newton’s prism experiment. There are lots of interesting and easy ways for you to explore the visible light spectrum. The range of colors the eyes interprets from electromagnetic radiation of different wavelengths is commonly used to depict the visible light spectrum.Įxperiments for Exploring the Visible Light Spectrum Incandescence is the phenomena when a body gets so hot that it begins to glow. Our eyes interpret this light as the colors associated with shorter wavelengths, such as blue and violet.Ĭonversely, energy radiations with longer wavelengths are interpreted as the colors closer to red and orange. The hotter the black body gets, the greater the energy it radiates and the shorter the wavelength of that radiation. Imagine a perfect black body, which absorbs and radiates all the energy that reaches it. The wavelength of the energy being radiated determines the color we perceive the source to be. The color of a light is determined by the energy being radiated by the light’s source. Light, Energy, and Color Temperature of Visible Light
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