Gilbert light experiments for boys . REFRACTION OFLIGHT When light passes in aslanting direction from onemedium to another, — for ex-ample, from air to wateror the reverse, or from airto glass or the reverse,—part of it is reflectedat the surface between thetwo media and part of itenters the second medium butis bent out of its path, from ABC to ABD, Fig. 111. This bendingis called refraction. When light passes from air to any densermedium as water or glass, it is bent toward a line NN drawnperpendicularly through the surface at the point it enters. See Fig. 112 (1). When lightpasses from water
Gilbert light experiments for boys . REFRACTION OFLIGHT When light passes in aslanting direction from onemedium to another, — for ex-ample, from air to wateror the reverse, or from airto glass or the reverse,—part of it is reflectedat the surface between thetwo media and part of itenters the second medium butis bent out of its path, from ABC to ABD, Fig. 111. This bendingis called refraction. When light passes from air to any densermedium as water or glass, it is bent toward a line NN drawnperpendicularly through the surface at the point it enters. See Fig. 112 (1). When lightpasses from water or glass toair, it is bent away fromthe perpendicular NN. SeeFig. 112 (2). Fig. 111. The light is bent or refractedFrom Lyndes Physics of the Household,published by The Macmillan
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectscientificrecreation
