The Yerkes Refracting Telescope Has a 1-M-Diameter Objective Lens of Focal

question 11

Multiple Choice

The Yerkes refracting telescope has a 1-m-diameter objective lens of focal length 20 m and an eyepiece of focal length 3.5 cm.What is the magnification of the planet Mars as seen through this telescope?

• A)140
• B)280
• C)570
• D)1,000
• E)​35