The Focal Lengths of the Objective Lens and the Eyepiece

question 50

Multiple Choice

The focal lengths of the objective lens and the eyepiece of a microscope are 0.50 cm and 2.0 cm, respectively, and their separation adjusted for minimum eyestrain is 6.0 cm. If the microscope is
Focused on a small object, what is the distance between the object and the objective lens?

• A) 0.57 cm
• B) 0.31 cm
• C) 0.49 cm
• D) 0.73 cm
• E) 0.42 cm

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Definitions:

Marginal Cost

The uptick in aggregate cost due to the output of an extra unit of a product or service.

Monopolist

An entity that is the sole provider of a particular product or service in a market, possessing significant market power and control over prices.

Output

The amount of goods or services produced by a person, machine, factory, or company within a certain period.

Demand Schedule

A diagram indicating the volume of goods or services that consumers can and will buy at assorted prices.