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Propagation de la lumière :

Propagation de la lumière :. Les ombres. Cas d’une source étendue. Pénombre. Pénombre. Ombre portée. A. Lampe. B. La zone de pénombre ne reçoit qu’une partie de la lumière venant de la source.

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Propagation de la lumière :

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  1. Propagation de la lumière : Les ombres Cas d’une source étendue

  2. Pénombre Pénombre Ombre portée A Lampe B

  3. La zone de pénombre ne reçoit qu’une partie de la lumière venant de la source.

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