The Focal Length of the Objective Lens of a Telescope

question 23

Multiple Choice

The focal length of the objective lens of a telescope is 0.20 m and the eyepiece has a focal length of 1.6 m.What is the length of this telescope?

• A)8.0 m
• B)1.4 m
• C)0.90 m
• D)1.6 m
• E)1.8 m

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Definitions:

Louisiana Purchase

The 1803 acquisition by the United States of over 800,000 square miles of territory from France, doubling the size of the U.S. and impacting its expansion westward.

Agrarian Character

Pertaining to the qualities or characteristics of agriculture or rural life.

Indian Tribes

Distinct ethnic groups and sovereign entities within the United States that have their own governments, cultures, and histories, often recognized as Nations within federal law.

Virginia Legislature

The legislative body governing the Commonwealth of Virginia, consisting of two chambers: the Senate and the House of Delegates.