The Focal Lengths of the Objective and the Eyepiece in a Microscope

question 100

Multiple Choice

The focal lengths of the objective and the eyepiece in a microscope are 0.29 cm and 2.50 cm, respectively. An object is placed at 0.30 cm from the objective lens and the image of this object is viewed with the eyepiece adjusted for minimum eyestrain. The near-point distance of the person using the microscope is 25.0 cm. What is the final magnification of the microscope?

• A) -190
• B) -240
• C) -300
• D) -310
• E) -470

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Definitions:

Multiple Correlation

A statistical technique that measures the strength of the relationship between a dependent variable and two or more independent variables.

Predictors

Variables in statistical models that are used to forecast or estimate another variable of interest.

Multiple Correlation R

Represents the strength and direction of a correlation between one dependent variable and two or more independent variables.

Significant

In statistics, significant means that an observed effect or relationship is unlikely to be due to chance, typically measured by a p-value.