A Camera Lens Has a Focal Length of 50

question 14

Multiple Choice

A camera lens has a focal length of 50.0 mm and an aperture setting of f/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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