Philosophical MagazineTaylor & Francis, 1913 - Physics |
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Page 121
... thickness of film . I 6. Actual Magnitudes of the Photo - Currents . No attempt was made in the experiments just described to compare the actual magnitudes of the photo - currents for different film thicknesses , but it was noticed that ...
... thickness of film . I 6. Actual Magnitudes of the Photo - Currents . No attempt was made in the experiments just described to compare the actual magnitudes of the photo - currents for different film thicknesses , but it was noticed that ...
Page 125
... THICKNESS OF FILM From fig . 6 it is seen that for both sources of light there is a certain thickness of film for which the photo - current begins to increase rapidly , and that this thickness is the same Fig . 7 . EMERGENT INCIDENT ...
... THICKNESS OF FILM From fig . 6 it is seen that for both sources of light there is a certain thickness of film for which the photo - current begins to increase rapidly , and that this thickness is the same Fig . 7 . EMERGENT INCIDENT ...
Page 127
... thickness 10-7 cm . is also a critical thickness for the velocities , which undergo a sudden decrease here . We will consider the merits of certain possible explana- tions of these photoelectric phenomena at the thickness of film 10-7 ...
... thickness 10-7 cm . is also a critical thickness for the velocities , which undergo a sudden decrease here . We will consider the merits of certain possible explana- tions of these photoelectric phenomena at the thickness of film 10-7 ...
Contents
SIXTH SERIES | 1 |
Dr N Bohr on the Theory of the Decrease of Velocity | 10 |
Dr S A Shorter on the Application of the Theory | 31 |
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absorbed absorption acid activity alpha rays aluminium ampere angle apparatus approximately atomic weight beam brass cadmium iodide calculated carbon cathode rays cent centimetre charge circuit coefficient collisions constant contact potential corpuscles corpuscular radiation curve deflexion deposit determined diffusion discharge electric electrometer electrons electroscope emanation emission emitted energy equation equilibrium experimental experiments film foil formula frequency galvanometer gases given gives glass heating effect hydrogen increase ionization ionization-chamber ions iridium J. J. Thomson layers magnetic maximum measured mercury metal method mgrms molecules negative nitrogen nuclei observed obtained oxide oxygen paper particles Phil phosphorus Phys Planck unit plate platinum positive pressure Proc produced proportional quantity radium ratio scattering shown solution spectrum sublimate substance surface Table temperature theory thickness thorium tube uranium V₁ vapour velocity vibrations volts wave-length waves wire X-rays zero