A fish seems to be at a depth of 75cm from the surface.what is the actual distance of the surface?
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refractive index of water=4/3
let real depth be x cm
therefore, 4/3=x/x-75
3x=4x-300
x=300cm
let real depth be x cm
therefore, 4/3=x/x-75
3x=4x-300
x=300cm
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