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Aadarsh
1. A pond is 5 m deep. A person standing on its bank will find/observe its depth, as (A) less than 5 m (B) equal to 5 m (C) greater than 5 m (D) can’t be predicted
Less than 5m, Generally.
I say A. If we suppose that the water is clear (otherwise its too easy and answer is E), water makes things look bigger, like a magnifying glass, so that's why I say A.
Bhaiya, please say. Its a FIITJEE Sample Question
http://en.wikipedia.org/wiki/Huygens%27_principle http://en.wikipedia.org/wiki/Refraction