A Refracting Telescope Has an Objective Lens of Focal Length

question 87

Multiple Choice

A refracting telescope has an objective lens of focal length 40 cm and a diameter of 10 cm,and an eyepiece of focal length 5 cm and diameter 1 cm.What is the magnifying power of this telescope?

• A) 10 times
• B) 40 times
• C) 2 times
• D) 8 times

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