Question

The principle on which fiber optics is based is
(A) Refraction
(B) Polarization
(C) Dispersion
(D) Total internal reflection​

Answer 1

Answer:

D) Total internal reflection is the right answer

Answer 2

Answer:

total internal reflection

Explanation:

when a ray of light is incident on the wall of optical fiber at small angle, it suffers refraction and strikes the other side of the wall, as the diameter is very small hence the angle of incidence is greater than the critical angle.The ray of light suffers total internal reflection