Optical fibres, though bent in any manner allows light to pass through. What is the inference that one can draw from it?

NDA NA Exam I 2015 Questions

Question 70 Optical fibres, though bent in any manner allows light to pass through. What is the inference that one can draw from it?

A) The concept that light travels in straight path is wrong
B) Light can flow through optical fibres
C) Light can travel through the fibres because of their ductility
D) Light can travel through the fibres due to multiple total internal reflections

Answer: Light can travel through the fibres due to multiple total internal reflections

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