Question 2. How does the brightness of the internally reflected ray change when the incident angle changes from less than 0c to greater than 0c? Is the critical angle greater for red light or violet light? What does this tell you about the index of refraction?
Question 2. How does the brightness of the internally reflected ray change when the incident angle changes from less than 0c to greater than 0c? Is the critical angle greater for red light or violet light? What does this tell you about the index of refraction?
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