When a flower petal is 40cm in front of a converging lens
When a flower petal is 4.0cm in front of a converging lens, the inverted image is half the height of the petal. What is the focal length of the lens? Please describe work/variables (eg f=focal length etc.)
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when a flower petal is 40cm in front of a converging lens the inverted image is half the height of the petal what is
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