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KCET 2018 Physics Solved Paper

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Question : 20

Total: 60

A candle placed 25 cm from a lens forms an image on a screen placed 75 cm on the other side of the lens. The focal length and type of the lens should be

+ 18.75 cm and convex lens
- 18.75 cm and concave lens
+ 20.25 cm and convex lens
- 20.25 cm and concave lens

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