What Is the F-Number of a Camera Lens That Has

question 45

Multiple Choice

What is the f-number of a camera lens that has an aperture-opening diameter of 0.30 cm and a focal length of 6.0 cm?

• A)0.30
• B)1.8
• C)20
• D)6.0
• E)​0.05

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Definitions:

Surgical Asepsis

A procedure to maintain sterility and prevent contamination in an area or on objects used during surgeries or invasive procedures.

Sterile Dressing Change

A medical procedure involving the replacement of an old wound dressing with a new, sterile one to prevent infection.

Medical Asepsis

Procedures used to reduce the number of microorganisms and prevent their spread.

Operative Area

A designated medical space equipped for performing surgical procedures, maintaining sterility and providing patient care during surgery.