What is the critical angle for diamond (n = 2.42)?
A) 2.42$^{\circ}$
B) 67.5$^{\circ}$
C) 65.6$^{\circ}$
D) 24.4$^{\circ}$
E) 37.1$^{\circ}$

Name: What is the critical angle for diamond (n = 2.42)? A) 2.42$^{\circ}$ B) 67.5$^{\circ}$ C) 65.6$^{\circ}$ D) 24.4$^{\circ}$ E) 37.1$^{\circ}$
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Question

Quizplus · Accepted Answer

The critical angle can be calculated using the formula: critical angle = sin^-1(1/n). For diamond, n = 2.42, so the critical angle is sin^-1(1/2.42) ≈ 24.4°.

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