q=0, p=24. 



Lovene for Lysets Forplantelse. 119 



I,(f'J-lm(r'J 



(327) •fo 



ro r"o 



= ~l5(3ff(^'o)~|n(r''o)). 



ludsættes disse Yærdier, saa findes: 



(f+eS(fc^-~w-) (P— 2) 5 



(®-t^,(v24-^^)+3,(v^+ii^?))(i+^p+^'q)=^,+^p(?ô 

 (328)G(g-,S(v^+w^^))(i— £P-£'q)+,3(t^H^^^)=,@~^Pr®; 



(^,,— f^v(y2+tf ^)+s.('^^+^*'^) = ^. + 



For at nu Lîg-nîngeroe (299) skulle kunne finde Sted, 

 det er, for al Ligningerne (324) og (325) skulle blive 

 identiske, maa man nodrendigf anläge: 



-hd(r„)-zftÛr)dt = o; 



^V3-p)+/rKr)(^-l)d. 



ro 



Ir4- 



2~p 



+ 2 



-^rWC^)dr=:o, 



ro 



(329) /.r« ^,„ . 



J rf,(r)-^dr— 4-'=o; 



to 



