A Convex Refracting Surface Has a Radius of 12 Cm

question 49

Multiple Choice

A convex refracting surface has a radius of 12 cm.Light is incident in air (n = 1) and refracted into a medium with an index of refraction of 2.Light incident parallel to the central axis is focused at a point:

• A)3 cm from the surface
• B)6 cm from the surface
• C)12 cm from the surface
• D)18 cm from the surface
• E)24 cm from the surface

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Definitions:

Motor Control

The process by which the nervous system directs or influences muscles to perform voluntary movements.

Cerebellum

A region of the brain that plays an important role in motor control, coordination, precision, and timing of movements.

Basal Ganglia

A group of nuclei in the brain involved in coordinating movement, as well as aspects of learning and emotion.