An Object Is Brought into Focus Using the 10* Objective

question 24

Multiple Choice

An object is brought into focus using the 10* objective lens.When the 40* objective lens is moved into position,only a minor adjustment using the fine focus adjustment is required to bring it clearly into focus.What is the term used to describe lenses with this feature?

• A)parcentric
• B)achromatic
• C)plan-achromatic
• D)parfocal

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Definitions:

Eisenhower

Dwight D. Eisenhower, the 34th President of the United States, who led the country during a period of great economic prosperity and was a supreme commander of the Allied forces in Europe during World War II.

Diplomatic Ties

Formal relationships between two countries, characterized by diplomatic communication and cooperation.

Obama

Referring to Barack Obama, the 44th President of the United States, who served from 2009 to 2017 and is the first African American to hold the office.

Article II

A section of the United States Constitution which outlines the executive branch of the government, including the powers of the President.