The Power of a Lens Is 4

question 16

Multiple Choice

The power of a lens is 4.0 diopters and its diameter is 5.0 cm.What is the focal length of this lens?

• A)25 cm
• B)55 cm
• C)10 cm
• D)0.25 cm
• E)2.5 cm

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Definitions:

Subcultures

Subgroups within the larger, or national, culture with unique values, ideas, and attitudes.

National Culture

The set of shared values, beliefs, practices, and norms that characterizes the population of a nation.

Unique Values

Distinctive qualities or principles held by an individual, organization, or product that set them apart from others.

African American

An ethnic group in the United States with total or partial ancestry from any of the black racial groups of Africa.