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Question #87312
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Question
What is the refractive index of medium 3 with respect to medium 1 if n₃₂ and n₂₁ are known?
A. n₃₁ = n₃₂ + n₂₁
B. n₃₁ = n₃₂ − n₂₁
C. n₃₁ = n₃₂ × n₂₁
D. n₃₁ = n₂₁ / n₃₂
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