Conditions of sensibility of photo-electric cells with alkali metals and hydrogen . effect is a maximum; and, when 1. Conduction of Electricity through Cases, pac^e 351. ^, Weid.Ann. LII p.433,1824; I,T p.684,1895; LXI p. 445,1807. Digitized by the Internet Archive in 2013 archive.org/details/conditionsofsensOOkemp the quantity of li^ht ataorbed is a n,aximurri the effect ie a maximui:.. r.Fohl^, and R.Tohl n .1 r.Tring&heirr,^, have shown in two papersthat there are two effects, a normal and a selective effect, ouper-imposed upuii each other wh^n X)olari7.ed light acts upon a metal. Inthe nor
Image details
Contributor:
The Reading Room / Alamy Stock PhotoImage ID:
2AN70C4File size:
7.1 MB (114.1 KB Compressed download)Releases:
Model - no | Property - noDo I need a release?Dimensions:
2263 x 1104 px | 38.3 x 18.7 cm | 15.1 x 7.4 inches | 150dpiMore information:
This image is a public domain image, which means either that copyright has expired in the image or the copyright holder has waived their copyright. Alamy charges you a fee for access to the high resolution copy of the image.
This image could have imperfections as it’s either historical or reportage.
Conditions of sensibility of photo-electric cells with alkali metals and hydrogen . effect is a maximum; and, when 1. Conduction of Electricity through Cases, pac^e 351. ^, Weid.Ann. LII p.433, 1824; I, T p.684, 1895; LXI p. 445, 1807. Digitized by the Internet Archive in 2013 archive.org/details/conditionsofsensOOkemp the quantity of li^ht ataorbed is a n, aximurri the effect ie a maximui:.. r.Fohl^, and R.Tohl n .1 r.Tring&heirr, ^, have shown in two papersthat there are two effects, a normal and a selective effect, ouper-imposed upuii each other wh^n X)olari7.ed light acts upon a metal. Inthe nori.ial effect the current incrpases with the frequency of the in-cident light and the orientation of the plane of polarization is ofpractically no influence except in so far as the absorption of lightdepends upon it. The selective e^fect Joes net appear by itself, but is always superimposed upon the norrnal effect. The curves inFig. 1, below show the two effects as they are superirapoKed upon eachoth^r for a particular angle of orientation of the plane of polariza-tion.. A 4-00/^ FIO. 1. Current is plotted as ordinates and wave lengths of incidentlight as abscissae. The curve S shows the selective effect and thecurve TJ shows the normal effect. The selective effect has the following features:-1) it is restricted to a short interval of wave length. the photo-^electrie current reaches a maximum for a particular wave length independent of the orientation of the plane of 1. R.Pohl. ^T-erh-der Phy.G. p, 350, 19 09. 2. K.Pohl ^ P, Pringsheim, ^erh-der Phys.O. p. 474, 1911. 3 polarization. 3) the Gurr^nt la mainly determined by the orientation of the planeo f polarization. Thus it is seen that the oriantation of the plane of polririzationdoes not chanse the position of the curve IT, but it does cause thecurx-e R to be shifted parallel to itself in the ^rsrtical direction.The highest position of the curve P! above Ihe horizontal exists forthe plane of polarization perpendicular to the plan