Before Light Can Undergo Total Internal Reflection When Incident on Material

question 34

Multiple Choice

Before light can undergo total internal reflection when incident on material 2 from material 1,what must be true of the indices of refraction?

• A)n₁ = n₂
• B)n₁ < n₂
• C)n₁ > n₂
• D)Either n₁ or n₂ must be equal to 1.

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