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Which of the following is true?

Which of the following is true?

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Suppose that, you have a fibre of the shape of a cylinder. Like in the figure, you let a light ray shine at left side at an incident angle i, it comes out of the right side at an emergence angle of r. Which of the following is true?
Transcribed Image Text:Suppose that, you have a fibre of the shape of a cylinder. Like in the figure, you let a light ray shine at left side at an incident angle i, it comes out of the right side at an emergence angle of r. Which of the following is true?
A: i < r B: Fiber's material is denser than the sorrounded material C:i > η D: Fiber's material is lighter than the sorrounded material E: Refraction angle depends on the fiber's length
Transcribed Image Text:A: i < r B: Fiber's material is denser than the sorrounded material C:i > η D: Fiber's material is lighter than the sorrounded material E: Refraction angle depends on the fiber's length
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