The Effect of Monochromatic Light on the Concentration of Large Ions

The divided electrode condenser is used to study the effect of monochromatic light of wave lengths between 4,030 and 6,610 Å (using 10 interference filters of Jena glass), on the concentration of large ions having mobilities below 10 × 10^–4 cm/sec: volt/cm.

The number of ions per C.C. is measured with the aid of the characteristics obtained for each wave length, at different group mobilities, both in the presence of light (N₁) and in complete darkness (N₂). The ratio (N₁/N₂) is obtained for each filter and for the four mobility groups, i.e. 6.90 × 10^–4, 2.22 × 10^–4, 1.02 × 10^–4 and 0.60 × 10^–4 cm/sec. : volt/cm.

The results are discussed on the basis of statistical analysis by applying the correlation and significance tests.