Suppose the glass paperweight in Figure 26-67 has an index of refraction n = 1.38. In figure
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Suppose the glass paperweight in Figure 26-67 has an index of refraction n = 1.38.
In figure 26-67
(a) Find the value of u for which the reflection on the vertical surface of the paperweight exactly satisfies the condition for total internal reflection.
(b) If u is increased, is the reflection at the vertical surface still total? Explain.
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