The Objective Lens of a Refracting Astronomical Telescope Has a Focal

question 18

Multiple Choice

The objective lens of a refracting astronomical telescope has a focal length of 60 cm,and the eyepiece has a focal length of 2.0 cm.How far apart should the lenses be placed in order to form a final image at infinity?

• A)44 cm
• B)58 cm
• C)76 cm
• D)60 cm
• E)62 cm

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