If n₁ is the index of refraction for the incident medium and n₂ is the index for the refracting medium, the critical angle will exist A)in all cases, it will just have different values. B)when n₁ n₂.

Question

If n₁ is the index of refraction for the incident medium and n₂ is the index for the refracting medium, the critical angle will exist A)in all cases, it will just have different values. B)when n₁ < n₂. C)when n1 = n2. D)never. E)when n₁ > n₂.

Quizplus · Accepted Answer

The critical angle exists when light travels from a medium with a higher index of refraction (n1) to a medium with a lower index of refraction (n2), i.e., n1 > n2.

If N1 Is the Index of Refraction for the Incident

If N₁ Is the Index of Refraction for the Incident