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    Physics & Astronomy
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    Discovering the Universe
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    Exam 3: Light and Telescopes
  5. Question
    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 31

Question 31

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) 18%
C) 45%
D) 98%

Correct Answer:

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