Question: A Fsherman sees a Fish in a river at an apparent depth below the surface of the water of 0.75 m. Given that the refractive index of water is 1.33, is the true depth of the Fish below the water's surface: A 0.75 m? B Less than 0.75 m? C 1 m? D More than 1 m? My proposal: I am not really sure about this at all. All I can think of is "if the refractive index of water is 1.33 then the depth could be 1.33 times that of what it seems to be" (however I CAN'T prove this, it's just a hunch) So 0.75 X 1.33 is roughly 1, so is the answer 1m?