43 a A ray of light in glass meets a boundary with air In Fig 5 1 the three diagrams X Y and Z each show a different angle of

Question

43 a A ray of light in glass meets a boundary with air In Fig 5 1 the three diagrams X Y and Z each show a different angle of incidence for the ray ray glass air glass 2 total internal reflection Y air glass Z Fig 5 1 1 Write down the letter of any diagram X Y or Z in which the ray undergoes 1 refraction air

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