NEET2019PhysicsRay OpticsActual
A fish in water (refractive index n ) looks at a bird vertically above in the air. If y is the height of the bird and x is the depth of the fish from the surface, then the distance of the bird as estimated by the fish is
Options
- Ax+y (1+ 1 n )
- By+x (1- 1 n )
- Cx+y (1- 1 n )
- Dx+n y
Correct answer
D. x+n y
Step-by-step solution
The distance of the surface of water for the fish =x . From the surface, apparent distance of the bird is n y . The total apparent distance =x+n y .