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A fish in water (refractive index ) looks at a bird vertically above in the air.If  is the height of the bird and  is the depth of the fish from the surface, then the distance of the bird as estimated by the fish is

a)

b)

c)

d)



Question ID - 152446 | SaraNextGen Top Answer

A fish in water (refractive index ) looks at a bird vertically above in the air.If  is the height of the bird and  is the depth of the fish from the surface, then the distance of the bird as estimated by the fish is

a)

b)

c)

d)

1 Answer
127 votes
Answer Key / Explanation : (b) -

(b)

When object is in rarer medium and observer is in denser medium.

Normal shift,

Where real depth

Here,

Now, apparent depth or the apparent height of the bird from the surface of the water

The total distance of the bird as estimated by fish is .

127 votes


127