Question

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

Answer 1

Less than 5m, Generally.

Answer 2

How?

Answer 3

Which principle?

Answer 4

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.

Answer 5

it's a secret.

Answer 6

Bhaiya, please say. Its a FIITJEE Sample Question

Answer 7

http://en.wikipedia.org/wiki/Huygens%27_principle
http://en.wikipedia.org/wiki/Refraction