. The study of the velocity of electrons in the photo-electric effect, as a function of the wave-lengths of the light. 33 These plates show the same characteristic properties of thephenomenon. The equilibrium potential is proportional to the squareof the frequency. This is always the case when the metal is in thepermanent state of activity. Caesium was poured into position C in cell Wo. 13, which was ofthe form shown in (a). The surface was fixed in the usualmanner. The color of the surface was a greenish gray and partlybronze. When liquid air was applied to the charcoal bulb, the meta
. The study of the velocity of electrons in the photo-electric effect, as a function of the wave-lengths of the light. 33 These plates show the same characteristic properties of thephenomenon. The equilibrium potential is proportional to the squareof the frequency. This is always the case when the metal is in thepermanent state of activity. Caesium was poured into position C in cell Wo. 13, which was ofthe form shown in (a). The surface was fixed in the usualmanner. The color of the surface was a greenish gray and partlybronze. When liquid air was applied to the charcoal bulb, the metalwas not active in the beginning. Violet light was incident upon thecell for an hour, or more, before the electrometer indicated a posi-tive deflection of 51C mm. which is equivalent to .062 volts, A setof observations wis taken, as recorded in Table V and curve 1 ofTlate VIII. The maximum potential was reached very quickly afterthe metal was connected to the electrometer, but was very difficultto read accurately. Liquid air was kept continuously on the bulband a series of observations was taken about twelve hour
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectlight, bookyear1912
