A Convex Lens Has a Focal Length F

question 69

Multiple Choice

A convex lens has a focal length f.An object is placed between infinity and 2f from the lens along a line perpendicular to the center of the lens.The image is located at what distance from the lens?

• A) farther than 2f
• B) 2f
• C) between f and 2f
• D) f
• E) between the lens and f

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Definitions:

Habituation

Tendency of the brain to stop attending to constant, unchanging information.

Learned Helplessness

A condition in which a person suffers from a sense of powerlessness, arising from traumatic events or persistent failure to succeed. It is thought to be one of the underlying causes of depression.

Contingency Blocking

A phenomenon in classical conditioning where a subject learns to associate a particular stimulus with an outcome, blocking the learning of an association with a new stimulus presented at the same time.

Response Generalization

The process by which a learned response is applied to similar stimuli beyond the original conditioned stimulus.