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NTSE Stage 2 SAT 2018 Exam Question Paper

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Question : 37

Total: 100

A ray of light of pure single colour is incident on the face of a prism having angle of the prism 30º at an angle of incidence 45º. The refracted ray does not change its direction as it crosses the other face and emerges out of the prism. The refractive index of the material of the prism is:

2
√3
2
√2
√3

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