How Much Must the Focal Length of an Eye Change

question 28

Multiple Choice

How much must the focal length of an eye change when an object, originally at 4.00 m, is brought to 40.0 cm from the eye? Assume a 2.5-cm distance between the eye lens and retina.

• A) 0.13 cm
• B) 2.48 cm
• C) 2.35 cm
• D) 2.50 cm
• E) 0.19 cm

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Definitions:

Imperative

Something that is required or absolutely necessary; a principle or command that needs to be followed.

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The concept that all aspects of a society or system work together in an interrelated manner to ensure stability and continuity.

Robert Merton

An influential American sociologist known for developing theories on social structure, anomie, and for the concept of self-fulfilling prophecy, among other contributions to sociology.

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