A Stamp Collector with a Normal near Point (25 Cm)needs

question 70

Multiple Choice

A stamp collector with a normal near point (25 cm) needs a magnifying power of 10 to examine her stamps.If one of the stamps is 2.0 cm wide,what is the angle (in degrees) subtended by the stamp when it is viewed through her magnifier?

• A)23º
• B)46º
• C)0.80º
• D)4.6º
• E)1.6º

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Definitions:

Physical Growth

The process by which a living organism increases in size and matures in physical characteristics.

Habituation

The psychological process through which an individual becomes accustomed to a stimulus and hence reacts less strongly over time.

Stimulus

Any external event or circumstance that provokes a sensory or behavioral response in an organism.

Operant Conditioning

Learning in which changes in behavior are shaped by the consequences of that behavior, thereby giving rise to new and more complete behaviors.