Light traveling through an optical fiber (n=1.44) reaches the end of the fiber and exits into air. (a) If the angle of incidence on the end of the fiber is 30o, what is the angle of refraction outside the fiber? (b) How would your answer be different if the angle of incidence were 50o?
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Answer:
Refractive Index of Optical fiber = 1.44
Any of incidence at the end of fibre = 30°
To find:
Angle of refraction outside the fibre
Concept:
Refraction occurs at the interface between 2 media mainly due to change in Velocity of the light wave.
Calculation:
Applying Snell's Law
answer r = 46.05
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Answer:
Light traveling through an optical fiber (n=1.44) reaches the end of the fiber and exits into air. (a) If the angle of incidence on the end of the fiber is 30o, what is the angle of refraction outside the fiber? (b) How would your answer be different if the angle of incidence were 50o?
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