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A telescope has an objective lens of focal length 200cm and an eye piece with focal length 2cm. If this telescope is used to see a 50m tall building at a distance of 2km, what is the height of the image of the building formed by the objective lens? |
| Answer» A telescope has an objective lens of focal length 200cm and an eye piece with focal length 2cm. If this telescope is used to see a 50m tall building at a distance of 2km, what is the height of the image of the building formed by the objective lens? | |