The Focal Length of the Objective Lens of a Telescope

question 27

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

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The price of a good or service within a country's borders.

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The total amount of goods and services consumed within a country's borders.

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The difference between the total amount that consumers are willing to pay for a good or service and the total amount they actually pay.