Question: A 35-mm camera with interchangeable lenses is used to take a picture of a hawk that has a wing span of 2m. The hawk is

A 35-mm camera with interchangeable lenses is used to take a picture of a hawk that has a wing span of 2m. The hawk is 30 m away. What would be the ideal focal length of the lens used so that the image of the wings just fills the width of the film, which is 36 mm?

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