A Camera Is Used to Photograph the Full Moon,which Has $\degree$

question 5

Multiple Choice

A camera is used to photograph the full moon,which has an angular diameter of 0.51 $\degree$ .The image on the film is 3.2 mm in diameter.What is the focal length of the lens?

• A)3.2 mm
• B)720 mm
• C)360 mm
• D)1130 mm

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