alleryRefractive index of medium 1 with respect to medium 2 (denoted ₁n₂ or n₁/n₂). If ₁n₂ = 1.5 and ₂n₃ = 4/3, then ₁n₃ =
A1.5 / (4/3)
BCannot compute
C1.5 + 4/3
D1.5 × 4/3 = 2 (chain rule of refractive indices)
Answer & Solution
Correct answer: D. 1.5 × 4/3 = 2 (chain rule of refractive indices)
Chain rule: ₁n₃ = ₁n₂ × ₂n₃ = 1.5 × 4/3 = 2. (Or use absolute indices: 1.5 = n₁/n₂, 4/3 = n₂/n₃, product = n₁/n₃ = 2.)
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