How does the tank appear to a viewer from outside ? – InterviewSolution

InterviewSolution

1.	How does the tank appear to a viewer from outside ?
Answer» Solution :If we see a water tank, its BOTTOM appears to be CONCAVE SHAPED although it is plane. Rays from A after striking water-air interface bend away from normal. The point A appear to be at A. i.e., the bottom appears to be RAISED and concave.

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