An under water swimmer is at a depth of 12 m below the surface of water.  A bird is at a height of
Channel: Doubtnut
Date: 23/08/2020

An under water swimmer is at a depth of 12 m below the surface of water.  A bird is at a height of 18 m from the surface of water, directly above his eyes.  For the swimmer the bird appears to be at a distance from the surface of water equal to (Refractive Index of water is 4/3)