Question

why apparent depth is less than real depth.
(full answer not one line answer please)​

Answer 1

Apparent depth is usually less than real depth because you are looking from a medium of lower optical density (air) into a medium of higher optical density (water or glass). ... The object is in air, the observer is in glass, so this is a case in which apparent depth should be greater than real depth.

Answer 2

Explanation:

Apparent depth is usually less than real depth because you are looking from a medium of lower optical density (air) into a medium of higher optical density (water or glass). ... The object is in air, the observer is in glass, so this is a case in which apparent depth should be greater than real depth.