Images et couleurs
Lentille convergente, image, grandissement, relation de conjugaison, synthèse additive et soustractive, absorption, diffusion et transmission.
THEME: Ondes et signaux
Parcours 2 : Classe de première spécialité
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Comment les lentilles de cette lunette astronomique peuvent-elles former des images du Soleil?
Rachèle est protégée par le filtre pleine ouverture de la lunette.
Photo : Olivier Gayrard
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