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    Investigating Astronomy
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    Exam 2: Decoding the Hidden Messages in Starlight
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    What Percentage of the Light Falling on a Piece of Photographic
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What Percentage of the Light Falling on a Piece of Photographic

Question 121

Question 121

Multiple Choice

What percentage 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) 45%
C) 18%
D) 98%

Correct Answer:

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