Lo\enc for Lysets Forplantelse. 



/ij.// 

 r^F(r)dr, 



149 



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ogr fölgelig;: 





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"I 2"" "^ (n-|-4)(n4-0)} 





+ 



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5 L (n + l)Cn-|-3) -^i 



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+ 2 1^~' (n4-2)(n+43 \ 



