A Fixed Focus Camera Has a Focal Length of 35

question 14

Multiple Choice

A fixed focus camera has a focal length of 35.0 mm.How far must the lens be moved in order to change focus from an object that is 20.0 m away to one that is 3.0 m away?

• A) 0.34 mm
• B) 0.41 mm
• C) 0.35 mm
• D) 0.47 mm

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Definitions:

Antigen

A substance that induces an immune response in the body, especially the production of antibodies.

Plasma Membrane

The cell membrane, which encloses every cell, regulates the passage of materials between the cell's interior and its external surroundings.

Anti-B Antibodies

Specific proteins found in the blood plasma that target and bind to the B antigen on red blood cells.

Anti-A Antibodies

Proteins produced by the immune system that specifically target and bind to antigen A on the surface of red blood cells.