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Optique TD


Eikichii

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Salut ! 

alors je viens de refaire un QCM du TD d'optique et un item me pose problème ou plutôt sa correction.

 

" La dimension d'une densité de flux lumineux est J.L^2 " compté FAUX

 

Mais dans la correction il est ecrit : " J.L^-2 "

 

Or pour moi J represente pas la dimension du Lumen mais du Cd.. du coups je ne sais pas si c'est une erreur ou si j'ai tout faux 

 

merci d'avance !  

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