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A converging lens with a focal length of 4.0cm is to the left of a second...

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Physics

A converging lens with a focal length of 4.0cm is to the left ofa second identical lens. When a feather is placed 11cm to the leftof the first lens, the final image is the same size and orientationas the feather itself.

What is the separation between the lenses?

Express your answer using two significant figures.

Answer & Explanation Solved by verified expert
4.4 Ratings (635 Votes)
Note that 1f 1do 1di where f focal length 4 cm do object distance 110E01 cm di image distance    See Answer
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