Conditions of sensibility of photo-electric cells with alkali metals and hydrogen . Plate XXII. The order of illumir,ating voltages ia ref^ular. The beotconditione for aensitivenefls are shown by curve for L ~0,5 cm, Plate XXIII, The order of illuniinating volt^g=s is regular. The best corditions for sensitiveness are shown by curve forD = 0,5 cm. Plate XXIT. The order of illuminating voltages is regulat. The bestconditions for sensitiveness are shov;n b y curve forD = cm. Plate XXV. The order of illuminating voltages is regular. The bestconditions for sensitiveness are shown by a curve y;

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Conditions of sensibility of photo-electric cells with alkali metals and hydrogen . Plate XXII. The order of illumir,ating voltages ia ref^ular. The beotconditione for aensitivenefls are shown by curve for L ~0,5 cm, Plate XXIII, The order of illuniinating volt^g=s is regular. The best corditions for sensitiveness are shown by curve forD = 0,5 cm. Plate XXIT. The order of illuminating voltages is regulat. The bestconditions for sensitiveness are shov;n b y curve forD = cm. Plate XXV. The order of illuminating voltages is regular. The bestconditions for sensitiveness are shown by a curve y;hichlies between curves for D = cm and D = 1,0 cm. Plate XXVI. The order of illuminating voltages is regular. The bestconditions for sensitiveness are shown b^ a curve whichlies betweer curves for D = cm and D =^ 1,0 cm. Plate XXVII. These curves show conditions of sensitiveness for different pressures and D = 1,0 cm. The curve representing bestconditions for sensitiveness lies near the curve forP = 3,0 mm. Plate XX^rill. The curves show the conditions of sensitiveness f

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Keywords: ., bookcentury1900, bookdecade1910, booksubjecttheses, bookyear1912