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Home Q & A Board Science-Related Homework Help Physics
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symbo symbo
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7 years ago
What fraction of the light falling on a piece of photographic film is typically wasted (does NOT contribute to the formation of the image)?
   A)  2%    B)  18%    C)  45%    D)  98%
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Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
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papachulopapachulo
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7 years ago
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4 years ago
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