What Is the Power of the Lens That Has a Focal

question 69

Multiple Choice

What is the power of the lens that has a focal length of 40 cm?

• A) -2.5 diopters
• B) -4.0 diopters
• C) +4.0 diopters
• D) +2.5 diopters
• E) +2.7 diopters

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Definitions:

Receptor Sites

Specific locations on the surface of a cell or within a cell that are sensitive to neurotransmitters or hormones.

Amygdala

A region of the brain involved in experiencing emotions, particularly fear and pleasure.

Thalamus

A major part of the brain acting as a principal relay station for sensory information flowing to the cortex.

Broca's Area

A region in the frontal lobe of the dominant hemisphere (usually the left) of the brain with functions linked to speech production.