A fish is swimming in a river at a depth of 20 cm from the surface of the water. Refractive Index of water is 43. At what depth will an eagle flying above the water and exactly above the fish will see the fish?
A fish is swimming in a river at a depth of 20 cm from the surface of the water. The refractive index of water is 4/3. An eagle flying above the water will see the fish at a depth of ___cm