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please answer all parts clearly. i am not understanding this problem. A convex lens with focal...

please answer all parts clearly. i am not understanding this problem.

A convex lens with focal length 10 cm is placed 80 cm away from a screen. A candle 5 cm tall is placed in front of the lens in such a location that a magnified image forms on the screen. (a) Calculate the position of the candle. (b) Is the final image upright or inverted? Real or virtual? Explain HOW you determine these. (c) Draw a ray diagram of the set-up containing at least two light rays. Comment on the agreement or lack thereof between your drawing and your calculations.

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