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A fish swimming in a pond seems nearer than it really is. Explain.

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Question

A fish swimming in a pond seems nearer than it really is. Explain.

Short/Brief Note
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Solution

This is because a light ray coming from the fish inside the water when suffers refraction at the water-air interface, it bends away from the normal at the point of incidence. The refracted ray appears to be coming from a point at a depth less than the actual depth of the fish. That is why the fish seems to be nearer than it really is.

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Chapter 4: Refraction of Light at Plane Surfaces - Intex Question [Page 90]

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Lakhmir Singh Physics [English] Class 10 ICSE
Chapter 4 Refraction of Light at Plane Surfaces
Intex Question | Q 2. | Page 90

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