4(i)
The diagram below shows a fish in the tank and its image seen in the surface of water.
(a) Name the phenomenon responsible for the formation of this image.
(b) Complete the path of the ray through the glass prism of critical angle 42° till it emerges out of the prism.
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(a) Total Internal Reflection
Reason — The image of the fish seen at the surface of water is due to total internal reflection as shown in the ray diagram below:
(b) Below diagram shows the completed path of the ray till it emerges out of the prism:
