If 1000 light photons enter the film and 500 exit,what is the optical density?
A) 0.02
B) 0.3
C) 2
D) 50
Correct Answer:
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Q27: The distance from the center of one
Q66: With film-screen imaging,the optical densities
A)can be altered
Q67: The range of densities visible defines
A)density
B)high contrast
C)short-scale
Q69: In film-screen imaging,reducing the number of x-ray
Q70: Increasing exposure intensity results in
A)more black metallic
Q72: If 10,000 light photons enter the film
Q73: If 6000 light photons enter a film
Q74: _ is defined as the log of
Q75: Every _ change in optical density corresponds
Q76: What is the inverse of 20% transmittance?
A)2
B)5
C)10
D)20
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