3 (B) in passing through the glass prism (C) is bent or re-fracted out of its course, and in being so, is analysed intoits various component rays which go to form the spectrum(D), which can be received on a white screen (E). If webegin at the top of the spectrum nearest the spot B, whichrepresents… … B Fig. 2.—Showing homogeneous nature of spectrum colours : green not further decomposed. Be H*.:< § 15. What is termed the refrangibility of a colour (re,again, and frango, I break in pieces) is the extent to whichthe colour is refracted or bent in its passage through theprism. Hence red and…
Color in the textile industries · Dyes and dyeing
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