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Fig. (a) and (b) show refraction of an i...

Fig. (a) and (b) show refraction of an incident ray in air at `60^@` with the normal to a glass-air and water-air interface respectively. Predict the angle of refraction of an incident ray in water at `45^@` with the normal to a water glass interface. Take `.^a mu_g = 1.32`.
.

A

`30^(@)`

B

`35^(@)`

C

`60^(@)`

D

`41^(@)`

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