A laser beam is introduced into an optical fiber, as shown in the figure. In order to ensure the beam to have a total internal reflection inside the fiber, what is the maximum possible incident angle 0 ? A) 67.3° B) 56.8° C) 78.5° D) 47° E) 23.2°

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Air
n =1
Optical fiber
n=1.4
Transcribed Image Text:Air n =1 Optical fiber n=1.4
A laser beam is introduced into an optical fiber, as shown in the figure. In order to ensure the beam to have
a total internal reflection inside the fiber, what is the maximum possible incident angle e?
A) 67.3°
B) 56.8°
C) 78.5°
D) 47°
E) 23.2°
Transcribed Image Text:A laser beam is introduced into an optical fiber, as shown in the figure. In order to ensure the beam to have a total internal reflection inside the fiber, what is the maximum possible incident angle e? A) 67.3° B) 56.8° C) 78.5° D) 47° E) 23.2°
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