NDA 2026 Physics question
A fish is at a depth d in water of refractive index 4/3. If a transparent slab of refractive index 3/2 and thickness d/2 is placed on the surface of water, then which one of the following is the apparent depth of the fish as observed by an observer in air ?
Answer: (C)
Solution
For layers of different media seen from air, apparent depth \sum$
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