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EFFECTS OF LIGHT AND ELECTRIC RADIATION
9. Effect of Short Exposure to Light
In fig. 40 (a), is shown the effect of light of 2 seconds duration on one of the two AgBr plates. An incandescent gas-burner was placed at a distance of
Fig. 40. Electromotive variation in AgBr cell due to the action of light. Ordinate represents E. M. variation, and abscissa the time. Thick lines represent the effect of light and dotted lines the recovery. (a) and (b) represent the effect of exposure to light of 2 seconds. The distance of source of light in (a) = 12 inches; in (b) = 6 inches. (c) and (d) represent the effect of continuous light for 30″; distance of source of light in (c) = 18 inches; in (d) = 9 inches.
