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The figure shows a water column BCFE sur...

The figure shows a water column BCFE surrounded by two media 1 and 3 of the same refractive index `sqrt2`. A ray of light from a point source S is incident on surface BE at an angle of `30^(@)`.

(a) Trace the path of ray through media 2 and 3 as it emerges out of face CG.
(b) Find the angle of emergence at face CG.

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