﻿210 Prof. W. G. Adams on the Polarization of a ray of 

 the degree of polarization in the refracted beam is 



(n\ 1—v 2 n 1— vF 

 P+ 2/iTW~2'T+7^ 2 



V* + 2/1 + 7?; 2 + 2 ' TTW 



1_^ n 8(t> 9 -w; 9 ) 



__ 1 l + 7v 2 2 (l-f7^)(l+7Q 

 1 — v 1 n r 1 — zv 2 1 — v 2 \ 

 ^T+7? 2 * 2 V 1 + 7^" 2 + 1+7?/ 



jp(l+7tt;«)^g. 8 tan 2 (e^&) 



= rrTTT^ 1+7^+1+7^-8 8111^-^ ) 



p(l + 72u 2 ) + ~ ott — t-t — — — — 



^ v * 2 cos 2 ((/>— 0J 



p (I+^ e )-|.8taii a (^^^) 



K 1 + ^ 2 ) + ,f • (f + 7w *) + g • 8 tan " (* - ^x) 



Expressing the result in terms of v* } we get 

 ft p(l + 7^(p+g)8Mn« (#-*,) 



*' + "• (p + lO (1 + 7v") - (p + |)8 sin 2 (<p -0.) ' 



or 



n\ 8sin 2 (<£— $J 



^ -P V^ 2/ l + 7^ 2 



When the light is completely depolarized by the four plates, 

 then 



p ___ 8 sin 2 ((£--&) _ 8 sin 2 ((£-&) 



2 sin^ + ^J 



+ 



hence 



jo 4j 



«+p ~ 1 + L___ 4 ' 



