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Consider the situation skteched. A fish ...

Consider the situation skteched. A fish lies 40 cm under the surface of water `(mu_(water)=4//3)`, 80 cm above a concave spherical mirro whose radius of curvature is 120cm. An observer looking down from above in the air `(mu_(air)=1)` sees two images of fish. Find distance (in meters) between these two images.

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