1.

A bird is flying at the height 3 m above the river surface while a fish is 4 m below the surface. At what depth would the fish appear to the bird ? At what height the bird would appear to fish ?

Answer»

The correct answers are 8 m and 7 m.Explanation:The expression for the refractive index in terms of apparent DEPTH in air is as follows;Put and REAL depth in air= 3 m.The FISH would see the bird at 4+4 = 8 m.The bird would see the fish at 3 m + 4 m= 7 m.Therefore, the fish would appear to the bird at depth of  8 m. The bird would appear to fish at the HEIGHT of  7 m.



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