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:

Price of Capital

The expense involved in using capital goods, often involving interest rates or rental costs for financial or physical capital.

Perfectly Competitive Market

A theoretical market structure characterized by a large number of buyers and sellers, homogeneous products, and no barriers to entry or exit, leading to price takers rather than price makers.

Market Price

The present cost at which a service or asset is available for purchase or sale in the marketplace.

Pairs of Earrings

Not an economic key term, but could be referenced in examples relating to consumer goods or inventory.