A) scattering
B) diffraction
C) polarisation
D) multiple total internal reflections
Correct Answer: D
Solution :
| An optical fibre is a device based on total internal reflection by which a light signal can be transferred from one place to the other with a negligible loss of energy. |
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| It consists of a very long and thin fibre of quartz glass. |
| When a light ray is incident at one end A of fibre making a small angle of incidence. It suffers multiple total internal reflections and finally it reaches the point B. |
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