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ppk ppk
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Posts: 3561
12 years ago
A camera lens has a focal length of 50.0 mm and an aperture setting of 4.00. What is the aperture diameter of this lens?
A) 12.5 mm
B) 10.1 mm
C) 13.6 mm
D) 14.2 mm
E) 15.0 mm
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wrote...
12 years ago
A
Biology!
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