Wright, Mark R., 1854- · London : Longmans · leaf 121
ned irregular reflectionand refraction is, that the fine glassbecomes opaque. If a liquid be poured over the glass whoserefractive index is the same as that of glass, the result will bethe same, as regards the action of light, as if the surface weremade smooth and all the small spaces were filled… … Fig. 92.
Physics
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