Q502
Optical fibres are based on the phenomenon of
A.
Interference
B.
Dispersion
C.
Diffraction
D.
Total Internal Reflection
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
Optical fibers operate based on the principle of total internal reflection phenomenon that occurs at the interface between the core and the cladding provided that the angle of the incident light inside the core is higher than the angle called critical angle.