A Camera Lens Is Initially Set at F/16 for a Shutter

question 23

Multiple Choice

A camera lens is initially set at f/16 for a shutter speed of 1/30 s.If the amount of lighting on the subject is unchanged,and the lens is set at f/5.6,what is the proper shutter speed at this setting?

• A) 1/8 s
• B) 1/250 s
• C) 1/500 s
• D) 1/16 s

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Definitions:

Functional Block Diagram

A graphical representation that illustrates the functions and flow of data among different blocks of a system, highlighting the system's functional interactions.

Ladder Diagram

An industry standard for representing relay logic control systems. The diagram resembles a ladder because the vertical supports of the ladder appear as power feed and return buses and the horizontal rungs of the ladder appear as series and/or parallel circuits connected across the power lines.

Ladder Rung

A horizontal row in a ladder logic diagram, representing a condition leading to an outcome in programmable logic controllers (PLCs).