Thin Lens Equation

1 = 1 +1
-5.0 cm 20.5 cm -4.0 cm

Magnification

m = 0.4 cm = -4.0 cm = 0.20
2.2 cm 20.5 cm
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Explanation
Bi-Concave
Converging MENISCUS
Plano-Convex

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Virtual Image
Original Object
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