The Aquarium Fish Illusion · AI Generator #GEN-0BE8A7D9
Physics · optics
Problem
A child looking at a fish in a rectangular glass aquarium notices that the fish appears to be at a different depth than where she thinks it actually is. The aquarium has vertical glass walls with thickness t=1.2cm and is filled with water. The refractive index of glass is ng=1.5 and the refractive index of water is nw=1.33. The child looks horizontally through the glass wall and sees the fish at an apparent distance of dapp=25.0cm from the inner surface of the glass wall. What is the actual distance of the fish from the inner surface of the glass wall?