A ray of light moving along the unit vector i 2j undergoes refraction at an interface of two media which is the x z plane The

Question

A ray of light moving along the unit vector i 2j undergoes refraction at an interface of two media which is the x z plane The refractive index for y 0 is 2 while for y 0 it is 5 2 The unit vector along which the refracted ray moves is A 31 51 34 B 4i 3i 5 31 41 C 31 5 D None of these

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