Optical fibre works on the
A. principle of refraction
B. total internal reflection
C. scattering
D. interference
Answer: Option B
Solution(By Examveda Team)
The optical fibre is a device which works on the principle of total internal reflection by which light signals can be transmitted from one place to another with a negligible loss of energy. Characteristics of Optical Fibre: It has a large bandwidth.This Question Belongs to General Knowledge >> Physics
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When reflection angle greater than critical angle i.e. 90 degree then totle internal reflection get occurred