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Physics, 21.08.2019 17:10 robinsonchristopher0

Afrog is 80 cm in front of a lens whose focal length is +50 cm. another lens of focal length +20 cm, is 100 cm behind the first lens. where is the image of the frog located? is it real or virtual?

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Afrog is 80 cm in front of a lens whose focal length is +50 cm. another lens of focal length +20 cm,...
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