An underwater swimmer is at a depth of 12 m below the surface of water – McqOptions

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1.	An underwater swimmer is at a depth of 12 m below the surface of water. A bird is at a height of 18 m from the surface of water, directly above his eyes. For the swimmer the bird appears to be at a distance from the surface of water equal to (Refractive Index of water is 4/3) [KCET (Engg.) 2001]
A.	24 m
B.	12 m
C.	18 m
D.	9 m
Answer» B. 12 m

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