Optical fibres transmits light along its axis, by the process of
(a) total internal reflection
(b) refraction
(c) interference
(d) diffraction
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total internal reflection
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optical fiber transmitts light along its axis by the process of
total internal reflection
option A
TIR or total internal reflection is which when a ray of light passes through denser to rarer medium after refraction the ray bends away from the normal
if angle of incidence increases = angle of refraction increases
if we increases angle of incidence beyond the critical angle. the ray will reflect backwards to the same medium. this phenomenon is called total internal reflection
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