A camera with a telephoto lens of focal length 125 nm is, Ask an Expert

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A camera with a telephoto lens of focal length 125 nm is used to take a photograph of a plant 1.8 m tall. The plant is 5.0 m from the lens.

A. What must be the distance between the lens and the camera film if the image is sharply focused?

B. How tall is the image?

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