A visitor observes a fish in a large aquarium. Visitors observing fish at the same height (fish and visitor's eyes are in line). Aquarium made of glass with a refractive index of 8/5 and filled with water with a refractive index of 4/3. Distance between visitor's eyes with a glass of 8.0 cm, a thickness of 3.0 cm of glass and a distance between fish and glass of 6.8 cm. Calculate the distance visitors if seen by the fish!

A visitor observes a fish in a large aquarium. Visitors observing fish at the same height (fish and visitor's eyes are in line). Aquarium made of glass with a refractive index of 8/5 and filled with water with a refractive index of 4/3. Distance between visitor's eyes with a glass of 8.0 cm, a thickness of 3.0 cm of glass and a distance between fish and glass of 6.8 cm. Calculate the distance visitors if seen by the fish!

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