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A biconcave lens made from glass with n=1.5. The radii of curvatures are

20cm and 10cm, and thickness is 5cm. An object of height 2cm is placed 8cm to the left of surface of the lens.

a) Describe the final image; location, nature (real/virtual), size, orientation (erect/inverted).

b) Answer part (a) by using the thin lens approximation. Compare your results with the results found previously and comment.

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