Explain what a fish might see through Snells windowSolutionA

Explain what a fish might see through Snell\'s window.

Solution

Answer:

A fish can see anything within the 97.2° (twice the critical angle) sight window, known as Snell’s Window, but objects near the edge of the window will be severely distorted and out of focus. The greater the angle, the greater the distortion. Objects directly above the fish will appear almost completely undistorted.

Simply we can understand like this,