If the Objective Lenses of a Microscope Can Be Changed

question 45

Multiple Choice

If the objective lenses of a microscope can be changed without losing focus on the specimen,they are said to be

• A)equifocal.
• B)totifocal.
• C)parfocal.
• D)optifocal.

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Definitions:

Modern Slavery

Modern slavery encompasses forms of exploitation that deprive someone of their freedom for personal or commercial gain, including human trafficking, forced labor, and debt bondage.

Wealthy Relatives

Family members who possess a considerable amount of wealth, assets, or financial resources.

Trapped

A feeling of being unable to escape or improve one's situation, often due to external constraints or psychological barriers.

Underclass

The poorest group, comprising the homeless and chronically unemployed who may depend on public or private assistance; they constitute about 12 percent of the U.S. population.