. The study of the velocity of electrons in the photo-electric effect, as a function of the wave-lengths of the light. TAFL? NO. VII. Caesium Cell 13, 2 days later than VI. A - Wave-length. N2 = Frequence2, d ? Deflection In am. v = voits, Tem, 23°C Tern. -40°C.(?) Tern. 0°C. A jf8 d V d V d V 420 .510 396 . 4^5 500 .600 1 # 450 .444 337 .405 440 .528 # 1 480 .391 315 .378 405 .486 402 ,483 510 . 346 290 ,348 374 .450 380 .455 540 . 309 265 . 318 345 .414 350 .420 570 .378 340 .288 303 .367 3 o 2 .374 600 , 350 215 , 2;.)8 285 . 342 290 .348 630 .227 202 .342 245 .294 248 .398 ooO .207 190 .32
. The study of the velocity of electrons in the photo-electric effect, as a function of the wave-lengths of the light. TAFL? NO. VII. Caesium Cell 13, 2 days later than VI. A - Wave-length. N2 = Frequence2, d ? Deflection In am. v = voits, Tem, 23°C Tern. -40°C.(?) Tern. 0°C. A jf8 d V d V d V 420 .510 396 . 4^5 500 .600 1 # 450 .444 337 .405 440 .528 # 1 480 .391 315 .378 405 .486 402 ,483 510 . 346 290 ,348 374 .450 380 .455 540 . 309 265 . 318 345 .414 350 .420 570 .378 340 .288 303 .367 3 o 2 .374 600 , 350 215 , 2;.)8 285 . 342 290 .348 630 .227 202 .342 245 .294 248 .398 ooO .207 190 .328 207 .248 313 .256 6S0 .185 171 .205 177 .212 177 .214 Reading of the electrometer uncertain. Possibly rise• f the temperature of the cell, poor insulation, andnegative effect are tie causes of the difficulty. Thecell, in this case, became negative in a very few min-utes when in the dark. YzltQ on needle of electrometer 127. K, = .OC120.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectlight, bookyear1912
