If the refractive index of medium 2 relative to medium 1 is n₂₁, which formula correctly expresses n₂₁?

Subject: General Awareness | Topic: Science | Difficulty: MEDIUM

Options

1. (A) n₂₁ = speed of light in medium 2 / speed of light in medium 1
2. (B) n₂₁ = speed of light in medium 1 − speed of light in medium 2
3. (C) n₂₁ = speed of light in medium 1 / speed of light in medium 2
4. (D) n₂₁ = speed of light in medium 2 − speed of light in medium 1

Verified Answer

Option (C): n₂₁ = speed of light in medium 1 / speed of light in medium 2

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