Question

A tank appears shallow than its actual depth due to

Answer 1

the tank appears shallow due to the property of refraction of light because when the ray of light passes from one medium to other ...in this case from rarer to denser i.e air to water ...the ray of light bends towards the normal due to refraction i.e the difference in the velocity of light in both the mediums ...so the tank appears shallow.

Answer 2

Answer:

A tank appears shallow than its actual depth when viewed from directly above. due to the refraction of light in the tank .

There is a connection between the real and apparent depths of the water. It can be proved that:

Refractive index = real depth/apparent depth