Question

Which principle is the basis for the transmission of light through fiber optic cables even if the cable is bent?

• A. Photoelectric effect
• B. Uncertainty principle
• C. Light diffraction
• D. Light polarization
• E. Total internal reflection

Answer 1

The correct option is E Total internal reflection

Optical fibres are used to transmit light from one place to another along curved path so it does not matter even if the cable is bent.Optical fibre transmission is based on phenomenon of total internal reflection .We must remember that optical fibre does not bend light, instead light follows a zig-zag path.