An instructor wants to use a lens to project a real image
An instructor wants to use a lens to project a real image of a light bulb onto a screen 2.27 m from the bulb. In order to get the image to be six times as large as the bulb, what focal length lens will be needed?
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an instructor wants to use a lens to project a real image of a light bulb onto a screen 227 m from the bulb in order to
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