In an experiment, four prisms were placed one after the other, as shown, and white light was passed through them. How will this light appear when it emerges from prism 4? Why?
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As light passes through a prism, it is bent, or refracted, by the angles and plane faces of the prism and each wavelength of light is refracted by a slightly different amount. ... As a result, all of the colors in the white light of the sun separate into the individual bands of color characteristic of a rainbow.
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